Ive changed so much I need to find myself?

At the beggining of the year I was just like last year complete girly girl friendly and outgoing but now ive changed and ive looked at myself and i don't I went to junior high this year and i ddint even want to goto school like id be crying if id have to go and i actually dont know why im not bullied im pretty popular and i get awesome grades but now i listen to like screamo and i know I sound like a jerk but how can i find my tru self again?