Please tell me i'm doing the right thing. i want to be thin, but i don't want to kill myself. i just don't?

When I was younger I was "chubby" girl and got mad fun of pretty bad. I was really tall when I was 12 so that didn't really help because I got made fun of that too. (I'm 17 now and 5'11 and 120 pounds). So, I went anorexic. I lost about 30 pounds in a month and a half. I realized what I was doing was pretty stupid. So, I started eating again but I had the same problem you have. I would starve myself then eat like crazy. I got pretty bad. But, if you plan out what your going to eat through out the day it really does help. Try only eating "trash" food one day a week. Like Friday or Saturday. And if you get hungry try eating a piece of fruit or something along those lines. I hope this helps. It worked for me. I don't eat junk food during the week. And if I do get hungry between meals I get a light healthy snack. I only eat bad on Fridays and I have kept my weight where I want it to be. Try doing yoga, it tones up your body and its not that hard to do.