Retired a little over six years ago, a month before my 71st birthday. Had to for medical reasons. The feeling of being a useless drag on society hung around for a while, then slid away. Now I have a lot less money and can't buy guns, but it's wonderful on a nasty morning not to have to scrape car glass and leave home.
I'm a widower of a good many years, so there was no wife to be driven crazy by having me around. I have health problems and a lot of pain, but also have the freedom to pace myself.
I still get up at a regular time every day, but it's gradually moved from 0700 to 0830. I do pretty much as I damn please as long as it doesn't cost money, have good times with my insane little dog, and feel that on the whole life is good.