Get a driver. I don't drive any more but still have a great time at the track. I never really thought that driving was the best part. Find some heads up class where your knowledge and skills are at a premium and run that as the owner/tuner. It's a blast and it will keep you thinking-if not poor.
I suspect that you'll miss it if you walk away from it.
Maybe hold the car/equipment for awhile before you make any rash decisions