The only reason why they bully you is because they know you don't do anything. You are making yourself an easy target. They use you for their amusement. I'm sure you don't want to be remembered like that, so you must take action. Taking your own life is not worth it, and not the answer. Just because people don't see you as what you are, doesn't mean giving in, and showing them that they are right. You are your own self, and your own version. What they say doesn't justify. God doesn't make mistakes, so don't think you are one.
Sometimes in life, we have to experience things we don't want to. Its up to us as an individual to decide where we will go, what we will do, and how we do it.
Contact a lawyer, a parent, a principle, or whoever has authority to change this action. Bring them your predicament, and they should do something about it. If they don't however, defend yourself, or change schools. Don't let them get to you.
If a pie is raw, add more heat.