Just because we’re a little smarter doesn’t mean that we aren’t still animals, and people tend to gang up on someone they think is weaker than the group. If you lack a lot of confidence then it’s easier to target you and might be why people make fun of you. Working on your self-esteem helps this issue in two important ways. First of all, if you’re confident with yourself then you won’t care what they have to say about you anyway. You’ll realize that you don’t have to put up with that and can go find friends that are nicer to you. Second, once people realize that they can’t get a reaction out of you then they’ll get bored and move on from it. There’s nothing wrong with getting help to work on your self-esteem issues, and you’ll be a happier person.