Make up your own rules and be confident. You will see how little the world cares when you present as a self assured and truly nice person. Think long and hard but once you have decided something just do it provided you have taken care of obligations that you care about and you committed to.
I spent far too much of my life energy worrying about the world but that is now over. It feels good to be myself and to be proud of what that means. Don't let others bring you down through their judgement because that is just insecurity on their part. Regale in your originality of spirit.
Live because life is short and we never know when our time is up.