“Be who you are and say what you feel, because those who mind don't matter, and those who matter don't mind.”
― Bernard M. Baruch
This is a great quote, as it is all about being authentic. You have to be who you are. You can’t be someone else, even if you wanted to.
Haters are going to hate. You can’t do anything about that. Is annoying, but only as much as you let it be. Don’t let it get to you.
There are those who can appreciate you, and who can love you. Some do so despite your true essence, and others because of it. You don't have to prove anything.