Your post provokes and I like it.
Especially the part of changing our mind.
A bible verse comes in my mind:
When I was young I was thinking like a child but as I grew up my thoughts changed as well.
It's not the literally interpreted but it matches the point.
Wedon'tt need to stick with older decisions we are free to make a turn to the left or right because now we are seeing better.
As you said.
Life is short, we should use our time wisely