Ones should never be happy with one's appearance if they wish to improve it. I will never be happy with my physical physique, however some may say I am very built, Still, I will never be pleased with my strength, speed, or mass. It's called auto criiticism by many people who realize how effective criticism is on how one lives a life. When criticism comes from ones' self, It makes the person wish to be better and do things to become better. Thereof creating an overall positive effect on mind, appearnce, and attitude towards others. This does include how one expresses his ego, also how one stands on his opinions.
-enlighten me