I celebrated my 30th birthday by completely indulging my immaturity & giving the finger to growing old. I threw a party for myself that had Scooby-Doo paper plates & hats & a Scooby-Doo cake. I told my friends to only give me toys & other "kid" presents--no books, no CDs, no videos. It was a blast.

And now that I'm in my 30s, I feel the same way you do--my 20s were good, I grew a lot, discovered new music & new art. But my 30s, so far, rock. I've learned more about myself in the past 2 years than I did during my entire 20s. I've gotten much more focused, too.

It also helped, as I turned 30, when a friend of mine who's 40 told me, "My 30s were the best decade of my life."