I know it's hard to suffer through now, I understand what you're going through. However, you're 12,meaning that there are many years of school ahead of you! It'll get better eventually, but you just have to keep fighting. It sucks, all those nights feeling alone and desperate, rubbing the skin off your limbs (I've always been more of an eraser burner rather than a cutter, but I do cut as well.) and just wanting to OD or die another way. I'm sure you've heard this before, but the bullies want to see you give up. I hated imagining my bullies' grinning faces, content that another victim fell due to them. Just keep fighting until you find that which gives your life a purpose. You can make it!