It's not that simple to do.
You need to hook up with a Club that does track day sessions with instruction to get your car on a Sports Course.
There isn't anywhere that just lets you go have fun with no restrictions.
Track time means car prep & getting it tech inspected, different brake pads are really needed, add a helmet that'll pass tech., get instruction at the track (classroom & ride along instructor before lapping with a beginner's group).
Drag is easier to find, open sessions are more common & take little to no prep.
For some fun & to see what the car can do, Auto-X is the best place to start. Only need a helmet or sometimes you can borrow for that.
Search SCCA in your area to find out when they run, it's a blast and the speeds are kept to about 60mph max for stock type cars to keep it safe.
Prep is limited to torquing your lugs, having a pump & gauge to add air to the tires, using whatever number system they use locally (might even just be shoe polish on the window) and cleaning all the junk out of the car.