Breads and pasta are made of wheat (generally...). Aside the bad sugar in them, modern wheat, nearly all, is basically genetically modified or bred to contain a protein that acts as an opiate, aside other bad stuff in there. Meaning the more wheat crap is eaten the more "craving" for it there will be, while harming the body in numerous ways.

If there's addiction to wheat crap, then might want to look into buckwheat (which is not a wheat, not even in the same family as wheat). About 6/10 of dry mass is carbohydrates, but it's the kind that is used slowly and calmly by the body, does not spike blood sugar at all. In fact is good regarding bloodsugar. Plus it contains some different kind of sugar that has many positive effects.
There's also buckwheat flour... if can't resist cakes, breads and such.
Best raw buckwheat if possible (not processed with excessive heat).

I'd suggest using magnesium salts (MgCl2 or MgSO4, or both), for extra magnesium kick. As a body in modern world, with foods deficient of it and negative influences that leech it further, will get into trouble. But if relocating to Hawaii then the "supplementation" might not be so relevant nor necessary, as swimming in sea water regularly can compensate (plus all kinds of minerals that sea water contains and body absorbs through skin).

And iodine. Shouldn't be a problem in Hawaii either? Fresh sea vegetables...

How much clean and pure and well/positively structured, and mineralized, water do you drink? Lack of adequate clean and pure and well structured and mineralized water could be what keeps you overeating... Essentially dehydration, but in a deeper and wider sense...
Water from one source isn't water from another source. And body doesn't have need for just any water. Dehydration of the right kind of water(s) causes pain and trouble in many ways, and body will try to give signs of it, but if you don't know how to read them or what pain is caused by what exactly... then you don't know what to consume in a given situation (which in case of trouble might be, and in many if not most cases is, right kind of water).

Mashing foods together like that into a salad, foods that don't even fit together... that's not good... at all.

Also, sounds like you eat "all day long"? If so then that's very bad also. Gut needs some free time to heal and rest. Try to limit yourself to eating twice a day, rarely once and rarely thrice, until you get your personal "routine" somewhat "fixed".

We are about 70-90% water... If you drink crap water and/or too little of it then that crappiness and/or deficiency transfers into you, it will be part of you, and as a consequence you will be in pain and suffer.
Look at the water you get and how much, it could relieve many issues.

Even if fruits have adequate magnesium in them there are still other factors that "leech" it from the body. EM radiation is one, bad stuff in the air we breathe, water and how it is structured (minerals are also used to maintain and correct the structures of water within the body), etc. - they all damage the body, and damaged body needs somewhat more nutrients to heal. It's hard to get enough magnesium from just common food, unless you live in a rather remote and unpolluted place with soil rich in nutrients, or get your food from only such places.
Organic doesn't really say much anything about nutrients of the soil they were grown in. Organic is mostly about not using any chemical nor toxic crap when growing the food, which is a significant improvement over chemical and toxin saturated foods, but still not the true real stuff as "nature would intend and make".

Some fruits cause less problems than others.
Apples... and specifically their peel... personally, apple peel (and they are apples from trees that haven't had any toxins nor chemicals used on them for at least 15 years, probably longer) has no good effect on my gut. At first, for a few first days it causes no problems, if haven't eaten them for a while, but then the peel messes up my gut. After removing the peel the problem goes away. I suspect the peel of some other fruits and even some berries might cause a similar negative effect. I suppose it's a sign that some fruits, and berries, are not supposed to be eaten so much.

Excess fiber leads to headaches, as it harms the gut. If gut is harmed it directs magnesium from the body to the gut for healing purposes, leading into deficiency elsewhere in the body, like the head. Low magnesium causes headaches. Plus harmed gut absorption rate of nutrients and minerals, especially magnesium, is significantly reduced.

Sugar itself isn't the cause, but it can lead to headaches as sugar needs magnesium to be metabolized by the cells. If there's too little magnesium, obviously it can lead to sugar not being used by the cells, thus it remains in the blood, which leads to insulin spikes, which can as well cause headaches and other bad things.

And of course potential toxins put onto and into fruits.

Isn't it funny how the time the "invention" of fire and cooking supposedly began, 300 000 to 500 000 years ago, is the exact same time supposedly there was an interplanetary/galactic war after which "light" lost and "dark" won. And the resulting disconnection/redesign of us from our true potential/abilities - "multidimensional" existence - to just mere survival and procreation in the physical world and thus simple slaves. On top of this the fact that we have tens and tens of senses we "seemingly" have no use for and never have had, yet they exist in us as if there is, or has been, a use for... Why would or even could all these receptors/senses exist if there has "seemingly" never been a reason for them to develop in the first place - a reason that can only be "multidimensional" existence.

Considering the above, what would it say about the discovery of fire... and from that cooking. As the discovery of fire on its own, without cooking attached to it, is nothing special. And considering the fact that no unmanipulated animal - that we once were - would choose cooked food over raw, ever (though there are scenarios... and they do include severe suffering and pain for countless generations, like a test; the end-goal being growth - which itself is only positive).

The likeliest scenario is that fire was (re)taught to us, as was introduced cooking, after we were (re)designed to lose ourselves. Because of its severe effect to our health and the resulting damaged health's effect of keeping us in a small box. Body can't grow or heal well if there's some constant negative effect from something or from somewhere, and the effect will extend to mental and emotional levels and whatever other levels.

Conflicting indeed. It's why you have to find what works for you - which is hard to impossible to do if the situation is rather bad.

Low or medium carb, drop fruits or limit their consumption (because generally too much fiber, too much sugar - they mess up the gut and thus nutrient absorption).
Definitely avoid processed sugars and excess sugars in general. Though I think honey could be good for you, considering your state and the fact it is easy for the body to use, and has many positive effects.

You can still have a ketogenic diet while consuming some amounts of carbs, but as others have said there are other factors that play a significant part.
There are different types of carbs, some spike blood sugar - the bad ones, others don't, try to find those that don't. And then those that your body doesn't use but your gut flora does - get these as well.
I know buckwheat is one source that doesn't spike blood sugar.

Mental and emotional stress play a significant role as well, as they effect the body a lot. Considering you are in school with exams, it must be rather stressful, especially with the accompanying health problems. It -  school - could, probably is, one of the the primary reasons why you have problems this bad.
Doing jobs that you hate - stressful jobs, school included - is a sign that you don't really know who you are or what to do with your life. Lack of resolution of self creates stress. You need to know who you are and the world you live in.
One thing I can say for certain: you don't need school. You really don't, no one does. Schools aren't meant for making a person become "more" or educating a person, they are meant to keep people in small stress-ridden boxes. But it's the values people are raised with and they come to know and live in, even if they are lies - because that's all they know, until they discover otherwise.
I was in university once, I thought it was important and necessary. Then I found out it was all a lie and a waste of life and health, so I left. Was a significant release of stress, an oppressing burden just gone.

And as suggested, get a vacation somewhere clean with good food, at least for a few months. Considering your state, I'd say you really don't have much choice... other than try to force through in your present location.
What I would also suggest is to just leave school, leave and never return, for it doesn't do you any good, nor ever will. It's a waste of life and health. Might sound "harsh", but it's a simple truth I know too well on my own and when looking at all these "achieved and educated" people who can't even see what's right in front of them, who don't know themselves nor the world they are in, yet are regarded as "superior".
What I would suggest would be, at least eventually, to somehow get out of the city, to a clean countryside or such place. Current cities are of death, and getting worse.
These are the hardest things to comprehend and do... because what's needed to make these happen are on the mental level and the emotional level, and requires going against what you were raised to know and live with and live in your entire previous life.

And as said many times - water. Need at least clean for water. In case of water there's more than just what's in it and what's not in it, there's also its molecular structure - which can be affected with human emotions, essentially meaning you can restructure the water on your own, thus making it better for yourself. Positive emotions and intentions and thoughts. EM pollution disrupts the structure, as does excessive heat, and ugly noise, etc. Sunlight is good for the structure.

Don't know what magnesium you are using, but just in case... go for magnesium chloride - MgCl2 - and it's water solution. Or epsom salt. Magnesium is very important, especially for a healing body.

Anyway. Diet is one important thing, another is mental, and then emotional. If one of these isn't okay then neither will be the others. Get to know and address all of these, as generally people only deal with diet (physical body), even less deal with mental (meditation and figuring out ones life and the world), and even less with emotional (which in truth I'd say is the strongest of them all; get to know yourself emotionally), not to mention their interconnectedness.

And try to also see why you went so angry.
And I'll even give an explanation to this.
You went angry because I touched an issue in your mind, a contradiction in yourself and brought it out in a way you couldn't ignore it. And so you either have to address it, accept it, and then begin correcting it. Or. Considering you are a fanatic, then the default action is defense and attack in return, thus avoiding the issue present in yourself.
Now ask yourself who is a fanatic. And you'll find out why you attacked in response.

One thing I've noticed almost all (if not in fact all) "scientific"-minded people do is provide the opinions of other people without really giving any original to their own. This is why providing "links" and such is simply keeping yourself in darkness and not really developing your own personage and individuality. If you base yourself and your worldview on the views of others, then... do I really have to explain this?
If you really knew what you were talking about, or anyone knew what they were talking about, then you, or anyone, would never have a reason to provide any data or opinions external to themselves.
If you find something new, something that makes sense to you and you perceive objectively (very many people have issues with objective thinking...) that it is beyond your previous understandings, then incorporate it into your being. And next time the topic comes up you will have no reason to find some external "supportive links", because you know it is a true part of yourself, until something better comes up and then you improve/upgrade yourself.
This "who's got the biggest supportive 'evidence'?" pissing-contest is a vivid sign of blindness and unawareness.

Providing any links is futile and pointless. Say your own mind, only your own, and original to yourself, from within yourself. Otherwise you do not know what you are doing. And if you don't find it from within yourself... then you have things to learn, and true learning not merely parroting others.
There are scenarios where providing external links and such is important and necessary, but not in this context.

As to "compromise" foods. Maybe try buckwheat over rice? Personally I'd take buckwheat.
I'd take buckwheat over rice anytime. Plus buckwheat wouldn't be much of a compromise food in the first place, definitely not anywhere near as much as rice, not to mention wheat.

~20 grams of ground flax seeds soaked in water made my bowels move better and smoother.

Thereafter it should have been in 2012 according to the Mayas.

Mayans never said or thought of "2012" as the "end of the world". It was always known to them as the end of an old cycle and the beginning of a new one. So the Mayan "2012" is not and never has been an example among the end of the world "prophecies".

Don’t forget that a battery is nothing more than an energy storage system!

I once thought the same, until I read stuff that explained that every electrical "generator", including batteries, is designed to make itself fail. That the entire science was built in such a way that if you follow the rules of that science and build something accordingly all you can get is a self-destroying energy source that needs to be "charged" with energy from outside it to restore it to its functioning condition, where it again begins gradually destroying itself. Energy comes through a dipole, from the vacuum/ether (it has many names), and obviously that's endless energy itself.

Considering everything I already know about our messed up world and the fact that all that is mainstream and backed by official institutions is to a large or total extent a lie, I have no doubt. They lie about medicine and ban good and natural things as if those are bad; say that material world is all there is; official schools are indoctrination and brainwashing centers; say that oil will run out when that's not true at all; they lie about everything... and if they don't lie then they will twist it or turn things upside down ("good into evil, evil into good"). Then why not electrical science as well? After all, energy converters that are designed to never stop working and to never need external input of energy because they tap into an infinite source we are all "swimming" in and dependent on anyway cannot give the "elite" power nor control.
Everything official is rigged and twisted.