I'm really worried that this girl that I really don't like wud come into my drama club help?!?

Seriously!!!! CALM DOWN!!!!!!!!!!!!! If your friends are real friends they will stay with u even if she does join!! Dont let her rule your life!! Stay in drama club, ignore her and act like she not there. Tell your friends how you feel about her joining and they will probably like you even more because you obviously care about them!!!! Enjoy it!!!!!!