You can't stop going to school or avoid every place where the bully might show up. Get other kids to help you. Bullies don't pick on everyone. Try to make friends with the large core of non-victims, who can help by using peer pressure to try to get the bully to change. Stop acting like a victim.
Weakness attracts bullies.
Stand up straight. Look people in the eye instead of looking at the ground. Speak with a firm voice. These behaviors show confidence and make it less likely that you will be picked on. Don't give bullies a desired reaction.