Tell an adult
The most classic line that most students hear is that they should tell an adult when they are being bullied. While this is very true, we understand as well that it isn’t that easy. If you snitch on a student to an adult, you could be picked on by even more people in the school.
But the truth is, nothing bad will happen to you if you tell a teacher or a parent that you are being bullied. They can intervene and help handle the situation the proper way. Remember that it is better to deal with it civilly than to try and use violence to defend yourself.