I feel the most important is listening to your body and mind... If you enjoy what you do, and the people you work for sure enjoy you, and you feel good, keep going. I think it keeps you healthy both in mind and body. Maybe draw back a bit on your bookings. When you start to mind going to a job, that is when you might retire. If you are still having fun, why not keep doing what your doing. Making people happy...!!!! Good Luck in whatever you decide... Ron