Addiction to ADHD meds

I first took an adderall 30mg pill in June of 2007. I felt great all day long. From then on I started buying them whenever they were offered. I soon became hooked on those. If I couldn't get the 30mg pills I would buy more of the lesser mg so I could get the same effect. Eventually I started taking other RX meds like ritalin, metadate, and concerta as well. I found that if I take enough of any of those (whatever may be available) I can get almost the same speedy effect that a high dose of adderall would give me. I know I dont have ADD or ADHD but I have become dependent on these pills just because they give me energy and make me speed. I notice that I concentrate very well, talk a lot, and no task is left unfinished. However, when I'm not on these pills, withdrawing, I am irritable, cranky, fatigued, and lazy. I hate the way I have become and so do certain people that Im very close to. My personal relationships have changed significantly because of my problem that very few know about. Also, I have noticeably lost quite a bit of weight. I was almost at 140 lbs and now I am under 120 lbs. I dont feel so great anymore unless I get enough mgs in me. I refuse to resort to going away to some rehab because I have my own child to care for. Im just hoping to find the best way to overcome this addiction and its withdrawl symptoms. How can I do this?