There is a couple of sort of cliché sentences you ignored or just never took seriously. If it is your case then you should rethink your attitude to the thing. I will repeat them for you and hope you will take it to your heart.
First of all remember that you are beautiful the way you are therefore you should never compare yourself with others because every single one of us is unique and that is exactly what makes us beautiful.
The second thing is it is okay to be yourself, just do what you want to do because it is not your concern what others think of you, life is too short to be boring.
And finally, you are just a human so take it easy.