Negative thoughts and self-programming is amazing thing! We, not only, see negative things is ourselves and others but we don't even see positive things anymore. We always start with what is bad, not good.
When we say to ourselves every single day that we can't, that everyone else is better, prettier, skinnier, smarter etc than us, guess what, we start to believe in that! And when others try to compliment us, we think they're lying. We should start to smile and be more positive about things and people around us. Let's start to take baby-steps. Let's smile to a stranger, give a compliment to person we don't know. Trust me, it will pay off with your happiness every single day without any particular reason!
Let's break this negative/self-programming circle once and for all!