You'll get over it.
Feels like your heart is a smashed digestive biscuit, right now, doesn't it? You're thinking you can't bear the day when you might wake up and forget what it looked like, right?
But, I'm telling you, a girl like you isn't a one-dress woman. You;re young. You're gorgeous. There'll be a thousand more dresses like this one.
Just don't let it break your heart. It ain't worth you smudging your mascara ... .