Here's how I see it. If you love what you do and feel you still can do it than by all means stay active for as long as possible. It seems that you, in particular, take advantage of your current schedule to get in a lot of travel and other outside activity right now. As long as it is financially solid to do that and more after retirement, you will never find yourself with nothing to do.
I loved the first few years of my retirement until physical problems started to affect my ability to do things. Also due to a lot of personal situations previous to retirement there was a limit to how much money I had to exist sans a regular income. One year I went to Atlanta for a fun AARP convention (they don't have them any more), I went to Augusta to the Masters, later in the year I went to the US Open and also made a trip back to Vermont and one to WDW. The next year I went to Europe (France, Italy and Spain) for a month including a 10 day trans-Atlantic cruise. I was anything but bored. I played golf twice a week, spent a lot of quality time with my family. Over the last 6 years I have been to WDW once and medically haven't been able to travel as much (especially those three glorious Covid years). I have spent a lot of time seeing doctors but that is part of life. It is what you make it until things that we cannot control introduce themselves and interfere with ones way of life.
There are so many choices and all of them hinge on ones desires and ones ability. I miss those bi-weekly paychecks I used to get so I could feel that I could spend on necessities and enjoyment because I knew whatever I spent I could make up with income. That is what I miss the most. The everyday "joy" of working started to fade away as I got to retirement age and had the same anxiety about retirement as everyone does, but I do not regret my decision. I wasn't expecting to be able to do things forever, but felt that since I started working full time the day after I graduated from college, when I found myself in Amarillo Texas in the USAF. That was in June of 1968 and I retired in December 2010. That was 42 years of life and work and I was ready for a rest. I also worked part time though high school and college. I'm glad I retired when I did so I could have those few years before medical things brought me to a halt. (I did manage to avoid Covid, so far) So it is really what makes someone and those that they share their lives with happy.