My Old Friend

I have a friend but I don't know what to do.She tells my secrets,hurts my friends mind and body,and she does stuff like that to me.But i've been with her since daycare.I've always had to baby her,just like everyone else.I'm getting tired of it.What should I do?Stay with her or leave.Please leave your answer in the comments.I really need someone else's opinion.Because i'm terrible at making decisions.PEACE OUT!!BYE!!