Adderall and basicly

I am a 14 and a half year old girl, 112 lbs., and I've been on Adderall Xr for about 2 years. It gives me dry mouth like Hell. Whenever I stand up, I get so dizzy I can't see. If I don't eat, it feels like my stomach is ingesting itself. It does help my ADD, I take it everyday. When I miss a dose, the day after is literally Hell. I like to hurt myself, basicly for fun and out of boredom. I took an herbal sleep aide for a long time since Adderall gave me severe insomnia (sleep just never came), but I've recently gone on strike since I don't want to have to take for the rest of my life. I usually do fine, except when I've had a certain amount or more of caffine, which was the same on the sleep med. I also have an eating disorder where I know I'm hungry, but I just don't want to eat. I've also become a lot more angry and irritable. I naturally keep things that bother me inside, and I'm extremly vindictive, so that sometimes stupid things just set me off for no reason. I take 25 mg everyday at about 7 in the morning.
Good luck to everyone out there. =^..^=