The best beauty secret, besides sleep and plenty of water, is do whatever it is - before you go out, before you need to feel beautiful - do whatever makes you feel confident. If it's putting on a great dance record and rocking out in your apartment, do it. If kissing someone for 10 minutes makes you feel confident, do it.
Fame, I mean, it's like a bubble, in a way. It's like something glittery, and it goes, and it can be forgotten fast.