I'm sorry you're getting bullied, that's a horrible thing they are doing. And no one should have to endure that torture. First of all: with the cyberbullying, don't delete it, keep it for evidence. Cyberbullying is illegal in a lot of places. If no one is doing anything about this at your school, then go directly to the principal. If your principal still fails to take action; then go to the police. Schools should have a no tolerance policy against bullying and can get into serious trouble if they knew a student was getting physically/verbally abused but did nothing about it. Bullying is not acceptable and something should be done about it. Keep strong and if your principal doesn't sort it out, the police will.
PM me if you need anything at all.
Love,
~Kenny