I did not read all the posts, and I (hope) I have many more years of RVing ahead of me before I have to hang up the key. I retired 3 years ago and immediately went out of my mind with boredom.
Now grated, we still have our camper and we still have possession of our stick-n-brick home, but what saved my sanity was to volunteer. I volunteered as a camp host in North Carolina 3 years in a row for the months of July and August. It was fantastic.
Then I broke into a gig in Louisiana on a historic plantation site. I dress in 1821 attire, do plantation house tours, and do a LOT of carpentry work on the site. It's all volunteer and I cannot get enough of it. If I could, I'd move permanently to Louisiana and never leave the park.
My home is in Indiana, and if it comes to the point where I cannot make the Louisiana gig work for me any more, I think I'll find some way to volunteer much closer to "home". State Parks are always looking for volunteer help. There are Civil War and Revolutionary War re-enactor groups, there are historical sites that need volunteers, even hospitals, libraries, and nursing homes. The need for volunteers is great everywhere.
I was shocked one day when I went to visit my mother in a nursing home and I heard this old man come into the building, singing and shouting his "Hallalujah's!" as he greeted the elderly residence there. He was the visiting minister for that day, sharing his "faith" with anyone who gave him the time.
To my second shock, I looked at the man and literally said, OMG! That man was one of my college professors....(some 46 years ago!) (Disclaimer: The college was a church sponsored Christian College). And you know what? I went up to him and said "hi!" He looked at me and immediately said .... My Goodness, "David" how are you!
Although he retired as a College Professor (sometime in his life), he did not stop. He found a meaningful way to continue sharing is "passion" with others and brought a lot of joy to the residents in that nursing home! He remembered my mother too, called her by name! What an amazing man!