Damn, I remember my sister who's now 19 playing this when she was your age. Haha, that should tell you how "cool" that game is.
Me personally, I never got into MMOs at all, as basically I suck at games too much to be criticized and interact with other players. So I never like, play games online ever, especially MMOs. I tried Maplestory for literally about 20 minutes, and then never really bothered with it again. Oh well, racing simulators and Fallout are what interests me currently for games. My more "nerdy" and "gamer" friends don't like that I won't play games online, but I just don't like it. C'est la vie...
And yeah, IMVU is pretty much the most uncool thing around. Sorry.