i can relate. We have issues dealing with eldercare that keeps us from doing what we really want to do (travel) and that has stifled a lot of what we were looking forward to. We are working on that issue.
I simply could not have done what I was doing any more. While in our current situation I do find some days less than fulfilling (OK, boring) there is not ONCE that I would rather be doing my old job or any other work. I'll let my engineering license lapse end of year; me ever needing it again is laughable.
I'm not happy, wild, and free (yet) but in a much better place. My full retirement was at about 61 and one of the things I have found instructive is that in fact, SOME day, I would have HAD to retire. Better at 61 than 73. Yes, some find working til death pleasant and it does happen. It's not what I'd want. So if you wrap your head around the fact that no, you don't wish to work until you die, then at some point you have to make the adjustment. I'm doing that now. Just happened to run into a former employee who was on our street and she remarked how happy I seemed. I was not putting on a show, and in reality, she was right. All I have to do is recall what being in meetings, confrontations, arguments, was like. And being directed by idiots and ego maniacs. My rule of thumb now is if it don't make me smile I don't do it.
Best of luck. Retirement comes very easy for some, others not so much. If you just relax and do some thinking on it, you will get there.