Realize that anyone who tries to put you down about your appearance is assuming that it is your job to please them visually. Once you realize that it isn’t your job to be visually pleasing to anyone, ever, it becomes very hard for anyone to make you feel bad about yourself.

Don’t talk to me because you’re bored, I’m not here to entertain you. And don’t come to me only when you need a favor, I don’t like being used.