dont do that to yourself , it is bad for you. i bet you are a beautiful girl, except your flaws. if you really really feel that way about yourself do something that will actually help you;join a sport, have a HEALTHYY diet you know salads and all, and running helps. im only 13 , but i have a friend who does this to her self and well when people noticed it for her, it just got thrown in her face, like if she got into a figth people would make fun of her for being annorexic ... well goodluck!(: