Physics changes, but reality stays the same
The fact is that there is nothing wrong with most of us that a good, clean change of attitude and some new skills wouldn't fix.
The trick is: you have to feel good for no reason.
If you can't enjoy what you have, you can't enjoy more of it.
I don't think that understanding produces change. Learning produces change.
Most people plan by disaster. They think of what can go wrong and then they master it.