I agree with the people above me. Basically, think about the possible reasons why you could be such a "bully magnet", so to speak...

First, find friends. People usually go after and bully people who are by themselves. I don't think I've ever been bullied when I had friends with me (except when the friends were the bullies). It's probably hard to be trustful at this point, but make your moves.

Second, your overall appearance. If you do anything, and I mean anything - dress, walk, talk, etc. - differently than other people around you, then think about getting that adjusted. It's kind of a shame, that you can't carry yourself however you want, but the fact is if you stand out too much you will garner more attention, and that could be bad. You want to blend in with other students.

Exude confidence. Make sure you stand with your back straight, head high, etc. Even if you feel like crap it's important to do this. I've been told that acting confident makes you more confident, and bullies don't like confident people haha.

Anyway, sorry you're dealing with this. I was bullied a lot too.