Hey, you are the best version of yourself. You are not in any race that you are comparing yourself with others.
Try to accept yourself.
You're beautiful as you are.
I know it's hard not to compare yourself with others, but really we don't have to. Just have a good look at yourself and you'll see you're as beautiful because there's not one definition of beauty.
Don't ever underestimate yourself! Everybody is beautiful in their own way. And remember, real beauty lies in your heart. Be a good human being so that people value your nature rather than your looks. Never compare yourself to others and put yourself down. Everybody is special and beautiful :)