I retired over 20 years ago at 55. I have never missed the work at all, I missed many of the folks I worked with and after 32.912 years at the same place I had worked with a lot of folks. The main reason I retired at 55 was that all my benefits continued after 55 and 30 years or more. The other reason was without saying so the mission statement was thrown out and the new management did not try and set standards that I had worked hard to meet for 30+ years and no one seemed to care about working to achieve goals, just to meet the budget.
So I set my own work standards in and around the house and on the road. We still take vacations but they tend to be longer now and a lot more fun when the only work you have to do when you get home is help the DW dust and clean and of course the dreaded job of pulling weed in the flower beds.
You just have to set up a rhythm of work and RV, RV and work and RV.