I just want to kill myself?

I've got called fat a total of 3 times today. Ughh. I cut. My parents are divorced. I feel like I'm so ugly, I just can't stand myself. My clothes are starting to not fit. they're getting to small. I've lost four pounds. I'm limiting calories to 1200 a day. I'm overly sensitive, depressed, bipolar, atheist, fat, and I have anxiety. I think I might also have diabetes. I can't stand it anymore. I mean, the way I see it is that if I'm dead I won't feel anything. And not feeling anything is better than what I'm feeling now. I cry myself to sleep EVERY NIGHT. I just can't take it anymore. Help? I'm 12, by the way.