If you are being bullied, tell a friend, tell a teacher and tell your parents. It won’t stop unless you do. It can be hard to do this so if you don’t feel you can do it in person it might be easier to write a note to your parents explaining how you feel, or perhaps confide in someone outside the immediate family, like a grandparent, aunt, uncle or cousin and ask them to help you tell your parents what’s going on.
Your form tutor needs to know what is going on so try to find a time to tell him/her when it won’t be noticeable. You could stay behind on the pretext of needing help with some work. If you don’t feel you can do that, then go to the medical room and speak to the school nurse.
The best idea is if a teacher can catch the bullies red-handed. That way, you won’t get into bother from anyone for telling tales. It will be clear to everyone what has been going on. Don’t be tempted to hit back because you could get hurt or get into trouble. Hitting someone is an assault.
Try to stay in safe areas of the school at break and lunchtime where there are plenty of other people. Bullies don’t like witnesses. If you are hurt at school, tell a teacher immediately and ask for it to be written down. Make sure you tell your parents.
(advice from bullying.co.uk)