Following along with you, for many years you're building cars, having a job, family, home, the hours, efforts catch up with everybody IMO. I agree with, "take a break", do something different, the car hobby, racing when I was younger into my 40's has been my life, and still is. I did develop interest in other hobbies, snowmobiles in winter, boating in summer, rode cycles till 2010, all my life DIY home projects and I'm on a break now from finishing up a sun-room addition to our home, the car hobby is on a break with an occasional cruise or show. The age/health thing is causing more breaks, less being accomplished. My 1/2 a brain left thinks I can still do anything, my body is saying No you can't, Stop abusing me. I understand the burnout deal, in my case, used up, worm out factors in, but I'll just keep plugging along the best I can, As we all say " If I knew I was going to live this long, I would have taken better care of myself " Funny thing, now in retrospect, was/is it all worth it ? Hmmmm, food for thought.