I used to run around in circles before deciding to go road racing.
I found
NASA PRO RACING has a program for every one.
Never been on a road course before? No problem. HPDE 1, their high performance driving experience pairs you up with an instructor driver to show you how to get around a track and some class room instruction on how to comport yourself. Flags, what an apex is, etc.
You don't even need a racecar. the 1st time I went, I took my wife's 4 door Chevy Lumina.
Want to haul ass in anything from your bone stock honda civic to track testing in a NASCAR touring series car? No problem HPDE 4 is the answer. Just hang onto your ass with both hands because there will be some very fast cars around you. The only stipulation is drive with your head. This ain't NEXTEL Cup where bumping is allowed.
Want to race? No Problem. Several series from Spec Miata to American Iron to Go Karts to Porche 944 , etc.
Last weekend I ran at Phoenix Intl Raceway on their road course. About 1/2 the track is the oval the big boys race on, then down to the infield road course.