Here are some suggestions that you might want to try. Check to see if your school has anti-bullying guidelines or some kind of rules about bullying. Then, follow the guidelines. Tell a friend what is happening and ask for help. It ll be harder for the bully to pick on you if you have a friend with you.
Bullies usually pick on kids who are alone.
Lonely kids are often targets. Find friends and allies. It s harder to be a bully in front of a group. Sometimes, if more than one person is being bullied by the same person, these people will hang around together, so that it s harder for the bully to pick on one person. Or, you can ask one of the group members when they re alone why the group finds it necessary to gang up on one person.