When I semi-retired 18 months ago my uncle, who had retired in his late 50's and lived to his 90's, asked me what I was going to do. Well, I have a lot of things to do around the house...
That will take you three months," he snapped.
I've let them go for a lot of years, the list is pretty long...
"Okay, six months."
...and I'm only semi-retired
"So nine months. The point is eventually it will be done and then you'll have to find something else to do."
I didn't go on to the additional point that I am also not very skilled at all this house fixing, because his point was ultimately correct. Eventually I would complete the tasks necessary to sell the house for downsizing. We will have a home inspection to avoid surprises later, and that may generate a few more tasks.
I finished yesterday morning, and didn't quite know what to do with myself in the afternoon. I have my usual things of long walks, working some days, reading to the granddaughters, reading for myself. My wife, daughter-in-law, and one of my sons have already told me laughingly they have things I could do for them. I probably will, but the point always was that I'm not good at those, and only take pleasure in completing the tasks, not doing them.
I have long yearned for days when nothing depends on me. We'll see if I can actually endure it.