everyone is 'pretty' but in thier own way. make-up is a lie 表示中 people あなた are who あなた aren't. like Dr.Suess once said, "Be who あなた are say what あなた feel because those that matter don't mind and those that mind don't matter." so it doesn't matter if you're 'pretty' または not because every one is, just not in the same way.
I don't think that it's something that anyone can explain to you; あなた have to find it inside yourself. Ask yourself, 'what makes me beautiful?' and 一覧 three things every morning that あなた 愛 about yourself.
Lol, just like yourself. No matter if あなた think you've accomplished your goal of being as "pretty" as あなた want to be, there is ALWAYS going to be that one judgemental jerk that doesn't like the way あなた look. Instead of trying to look at what other people define as "pretty", find your way on your own. It's far better than anyone else could come up with. :)