It is not only popstars that feel like there trying to be someone else. Sometimes you just have to let go and be yourself :) So here are a few wee tips to try and help you let go;
1. Try and notice when you feel confident and when you don't, who are you around, what are you doing?
2. Share your weaknesses with someone you trust so that they can give you helpful advice so that you can become a better person.
3. Listen to what you tell yourself. Are you calling yourself fat and ugly, STOP! Constantly reassure yourself and tell yourself what your good at.