Never be ashamed of who you are. You have to accept that not everyone is going to love you back, that's why it's most important to love yourself. It's not about being what everyone wants you to be, it's about being yourself and finding someone who truly loves you for what you are. The only thing that will make you happy is being happy with who you are, and not who people think you are. If you always accept and be comfortable for your flaws, no one can ever use them against you. So don't change just to please someone. Just be simple, original and unique in your own way.