I discovered the hared way that one doesn't get old. It happens slowly and goes almost unnoticed until, in my case at least, everything physical gets more difficult. I had just bought my present house when I was your age 14 years ago. I worked my ass off clearing brush and painting etc and still had time and energy to go camping and hiking with the ex. I'm almost finished cutting my last log-length of wood. Every year the rounds get heavier and I have less energy to keep up with everything else that needs to be done. Anyway, you get the idea. Only thing I can say is that getting old beats the alternative and I'm grateful that I have the opportunity to experience it. I know, make that remember, too many people who didn't get the chance.