We live in a world where people judge. That's all they do, JUDGE. Judge your clothes, judge your hair, judge your face, judge your body, judge your personality. And in order to impress them, you have to be someone else. It's like you can't be yourself anywhere. Let alone at school. Even when you do fake being yourself, you get caught up in drama and hate and it never pays off.
So just enjoy your life, and seriously, don't let anyone bring you down.