Ace,
It sounds like you're well on your way. My bet is that you have one or two calls that you know you're good with, and a couple that you're not quite as proficient with. For me, I'm good with a couple of my mouth calls, and I'm learning a box call to add that to my bag-o-tricks. My advice is to find the calls you're best with, and practice like crazy. And get good with another kind of call too. Maybe you're a bit better with one of your boxes and okay with a slate. Pick two or three calls that sound a little different to take hunting with you. Learn them. Keep studying websites and reading. You'll be laying out longbeards with time. Best of luck.
-- B