I'm pretty sure you don't need your license for a trackday. At any rate, start off slow and don't ride over your head. Trackdays are just that, days at the track, not a race. I have done over 30 trackdays in the past year. I even worked for one of the orgs you mentioned and nothing will get you into trouble faster than getting out there and going balls to the wall or having an inflated ego.
Go out there and have fun, the speed and form will come gradually.