Hello Archie: I guess I can't really relate to your situation.
I stopped working somewhere around your present age as a result of a combination of mental health & physical / medical problems. I'm now pushing 70 years old.
However I can certainly relate to the feeling of just working for a living. I pretty-much felt that way my entire working life... which perhaps at least partially explains how I just came to give it all up when circumstances conspired to create that opportunity for me to do so. Anyway... I didn't really have any particularly useful observations to offer. I simply wanted to let you know I read your post & I wish you well.