Keep busy with something. The day a man retires is the day he begins to die. Always keep busy, just try to be happy about it & maybe take a slower pace.
A couple years back, I saw a really old woman slinging fries at McD's. She seemed happy enough, not destitute, this job was just something not too difficult to do to pass the time.
I'm more of a coffeeshop guy, myself. I could see myself doing that.