Looks, or looks?

I mean, is it stuff they DO or something they are? I had a sort of duck-to-swan progression, your day may yet come, and if it's a styling, grooming, taking better care of themselves thing, and if you actually want to look more "beautiful" you likely can, by finding your style, taking care of yourself, and not worrying about looking good to anyone but yourself. If you were friends with you, would you call your friend ugly? I hope not. Be a friend to yourself.

There will always be someone better looking. There will always be someone smarter. There will always be someone richer, someone more magnetic, more outgoing and comfortable.

If you are really suffering, it's your mind doing that to you, not your looks, and please know that if you had supportive parents you had more than a lot of people do.

ETA: you don't have to look any better than acceptable to be attractive. Looks are a way to get in the door but they don't do more than that. You can likely meet that acceptable bar and from there everything else matters more. Looks don't make up for a crap personality.