I cut myself for attention, and I really want to stop(very very very long question, I'm so sorry)?

Well, I took the time to read the whole question, for one. :) I know you need some help. But I don't think you are stupid! Try replacing the anger, and fear with different thoughts. For every bad thought, think of a good thought. Whenever I feel really down, I will be crying uncontrollably. But I feel better once I listen to songs like "We Can Change the World" by Brigit Mendler. I think that song alone would have a positive impact on you. I have never cut myself, but if I ever felt like that, I would look at neon colors. Bright, happy colors. Positive. Don't think of the negatives. Just positive. And don't feel like you should die, because when something bad happens, a good thing always comes in return - if you act positive about it! Don't feel fat, because you are not! You just don't have good classmates. Try doing nice things for people who aren't nice... Because it is nice! Things like that lead to positives.