I don't have that answer for you.
There have been a great many things working against you, and getting in the way of your living the life you chose so long ago! Regulations mostly, but those didn't stop you, you adapted.
A dear friend of mine, now 70, is pushing herself so hard to continue to achieve as much back breaking work as she has been able to do up till now. Now, if she does that much, if she does what she loves to do, she is in agony until bedtime. She is retired from her career though, as a secretary.
There are some similarities between the two of you, but your career is back-breaking, but still you love it and don't really want to stop. Can you afford to retire? You don't talk about that, except to say your kids are grown. Can you cut back, do half as much?