There’s no quick fix for low self-esteem. But one of the first things you can do is look at the people around you, all your family and friends, and think about why they like and love you. They have reasons for liking you, even if you can’t see it or have trouble believing it. Think about those things and try to affirm to yourself that they are truths, because they are. Repeat these things to yourself when you’re feeling insecure, and the good feelings will be reinforced. It just takes a willingness to open yourself up to the possibilities.