Movies Similar To Mean Girls?

hello i know theres a mean girls 2 coming out but i think i cant wait that long so i was woundering until mean girls 2 premiere if anyone can give me any similar movies like it?it can be the ordinay type of movie that a girl goes to school and gets picked on or a romance.It can also be similar to these movies Confessions of a hollywood popstar or teenager i forgot but it has jojo in it or Aquamarine,Odd girl out anything like that