Sorry I didnt respond to your questions/thoughts earlier ... I was away for a week.
I believe from what you describe that Miracle-Mineral-Supplement
can help you a lot ... combined with pure water (a liter per 40 lbs of body weight per day), and a gradual shift towards a more alkaline diet. It is very hard to become emotionally well when you are suffering physically.
It is much like the proverbial chicken and the egg scenario ... you need to go after both your physical health and your emotional health at the same time. If I were in your shoes, I would NOT go back to school until I had achieved a measure of physical health, AND emotional health. Until then, you may be wasting your money and your time, and just building your level of frustration (which leads to depression).
Combined with the Miracle-Mineral-Supplement
protocol, you should consider doing things for your emotional/spiritual well-being. First, think about life a little; what you see around you is NOT all there is ... there is a "heart" or center to things that is not visible, but which can be felt in your center, in your heart. Take a look at some sacred texts; I could recommend something that I find very useful if you are interested.
It is important to sense this ... to get a sense of the joy and wonder that is around us, and the beauty. Then, I would recommend breathwork, or circular breathing, as the best place to start. There are some great books on the subject, which you can use to teach yourself, which you can get used online for about $8 each.
Also, practice good thoughts as much as possible ... make a very strong effort to forgive everyone/anyone who has ever, in any way, harmed or wronged you. Not only forgive them, but think good thoughts for them from the bottom of your heart. This is one of the most liberating things that you can do for yourself.
For the self-esteem issue, my wife loves a book called "What to say when you talk to yourself", but breathwork/rebirthing/circular breathing is probably THE most imortant place to start on the emotional side of things, and even helps a great deal on esteem issues.
I have no doubt that internal pathogens are behind so much of your issues ... and possibly metal or other toxicities ... the Miracle-Mineral-Supplement
/water/alkaline protocol will alleviate symptoms from all of these.