That is great you are comfortable on the bike. That is a good start. There are so many sublte yet critical things on the track that you can only learn on the track.
One small example that surprised me as a noobie was just how strong the draft was at track speeds. Coming up on the back of a pack doing 25++ mph, I would be working hard to catch up, back off to match pace, but the draft of the pack would suck me in faster than I expected and I would overshoot my mark. But once I learned how effective the draft was, I could use it to my advantage...