Will it stop?

There is a girl (and now her group of friends) at my school for the past 3 or 4 months that has been bullying me. They’ve been hissing, barking and yelling at me; and previously she had intimidated me with her hands on me, pushed and inappropriately touched me. I’ve tried telling my guidance counselor; but its continued. It got to the point that I told my principal and the girl would stop for a week or 2 then start up again. Exactly 2 weeks ago a staff member a my school saw/heard them barking at me and told them to stop, and when they didn’t she told the dean of students. Going through this is hard enough, but not having a friend along the way is even harder. My friend got upset at me, partially because I tried telling her about the bullying, and she refuses to talk to me.