How do I become a better drum set player? (Expert drum set players only please!)?

Okay, I've been playing set since Christmas 2010 and I feel like I'm
slowly getting better. But now I feel like I've hit a bump on my road
to success, and I can't get over it! I am ordering a double kick bass
pedal soon, more cymbals, and probably more Tom-Toms. Will this help
me become better?
What do you think would help me get better, besides practice? Thanks!
-Mason