I want to be anorexic?

Idk..I just...I'm so fat and ugly. I feel like that if i was skinny i would be pretty. I cry all the time because im so fat. i hate being fat. its disgusting, and the thing is, i dont even eat much. Ive been planning on exercising and not eating until im skinny, but i dont want to harm my health...what should i do =\