How did you manage to stop hating your looks and just living with and loving yourself?

No, I don't wanna discuss if I should stop hating my looks or if I have a "right" to worry about my looks.
Fact is, I sometimes hate the way I look and that keeps me from living life to the fullest. I have the impression that ppl who are not so concerned are much more relaxed and easy going. Going with the flow. How do I get there?