How do you know how anyone else feels deep down? Beauty is subjective, yes, but you can determine your own attractiveness according to your own criteria, and the criteria of society. "You are beautiful" will never be a universal truth, but considered in accordance with the norms and standards of yourself, society, and the people you meet, you can get a good indication of where you stand. I never felt attractive, indeed quite the opposite, until I hit my late teens. Then I started receiving more and more compliments, and now I am aware I'm attractive, but I don't feel like it is really a part of my identity. It feels good to look good, but true beauty definitely comes from inside.
I was drunk when I typed what I typed but I'm just saying I know a HANDFUL of very attractive people who are extremely insecure and self loathe all of the time. And at the same time, I know some people who may be considered uglier (bad teeth, big noses, a bit overweight) who exude confidence. And I think society's suggestion of goodlooking (or the media's portrayal of what is ideal) is not very good looking at all. If I turn on my TV and see another blonde girl with orange skin I might vomit... some other people think that is HOT. I know what you mean about growing older and getting better looking. I was goofy looking as a kid and now I consider myself to be pretty decent looking. regardless though, I'm saying that I don't think either way my life would be any different than it is.... if I was uglier, or shit, even prettier. Just saying it's a dumb question "what's it like to be attractive" some attractive people are models making 6 figures... other attractive people are starving in third world countries.