I remember the desire to "fit in" mostly started in the 5th grade of Catholic school. Girls develop about this age and young adult books such as those written by Judy Bloome were popular. I hadn't started developing nor was I part of the "popular" crowd. I turned to my mother for advice and her strengthening words were, "Teresa, there are always going to be people who like you and dislike you; just pay attention to those who like you because you cannot please everybody."  When in doubt and through my whole life, these words get me through times of doubt in myself. I've never tolerated bullying done to others. Face the demons, shake the shit off and move on.