Anonymous Story Bulimia

I am so envious of the girls that can loose the weight. I do the occasional laxatives, throwing up, bingeing, starving. I can't loose any more weight. I used to think it was in my head. It's not I was happiest when I weighed 15 lbs. lighter. How can I loose it? I don't have time to exercise. I don't eat but once a day. Please tell me.