Changing the past (if possible) would change the present person also and that would bring a whole other set of changes or possibilities in the future. It's best to accept that whatever happened happened, for better or worse, and react to that. The problems arise when those course direction changes are not made. We most adapt, learn, overcome, improve and so forth, that is where better presents and futures start.
I think you're on the right track and your last line...I'd like to see a post on it from you; maybe I'll make a weekend-engagement topic about it.
Hmm...let's see here
Would that be this last line from the first paragraph?
Or perhaps this one?
My time as nursemaid is beginning to lessen a bit...it's been a full week now, so more time will be available after Wed/Thur. medical appointments.
The last line, "still have more to think about on this subject."
It suggested there's more thought to come if it and I'd be interested to read it someday.
When I wrote my posts I do so for myself but I'm often interested to hear what other people have to say about the topics I have on my mind at the time because other people's thoughts are sometimes of value, their perspectives.
I may just give that a go!