High School Advises

I've been at the same school since kindergarten. I've been bullied since 6th grade and now I'm a freshman and it still continues. For a while I didn't hunk it would affect me but it dose. I have a hard time focusing in class and I can't go anywhere without getting jumped by the same girl. They may not even let me on my cheer squad next year if the problem isn't solved. I've tried and tried. It won't go away. My parents have done so much! But my school dosnt take my case seriously. Nothing ever happens. I'm seriously considering going to another school. Problem is my mom won't let me. I can't drive unill June but I was thinking about going to a close high school.I've told my mom so many times but she says no. I can't run away from my problems. I can't do this. This girl won't stop and I can't do it anymore!