I've always been into dressing up, too. I had a friend who was obsessed with fashion from very early on (she was like 8 and I was 6 years old) and I remember when she got her first Vogue, and we were hooked! We used to do fashion shows (for "Versace"..her father's an artist so he'd put it all together for the stage, and we'd just wear whatever we had and pretend it was haute couture, haha!) for our friends, family and neighbors for many years. We had like a narrator and everything, and it was the coolest thing back then. Great fun.
I lost my interest in fashion for a while when I became a rebellious teen, and I'd just dress up into my mom's and her family's old things from the 60's (come to think of it NOW, I was pretty cool, but everyone didn't get it obviously) but a couple of years ago my love for fashion returned. I'm not a brand-wh*re or anything, I still love my vintage, but the great thing is to mix these worlds together. For me it's not that serious. Fashion is fun.