People bring you down. It’s a fact of life. They tell you that you are ugly or stupid and use a derogatory term to hurt you. You have to learn to move past these things and not care what they think. You aren’t a part of this world to please them. Some people find pleasure in treating people horribly which personally I will never understand. All they are doing is putting a label on their forehead that says “I’m mean.” They lack the self respect to treat others properly so their criticism shouldn’t factor in to how you feel about yourself.