We often regret:

Oh I should have known better. I wish I had made a better decision. 

But how rarely do we think:

How grateful I am that given the circumstances something FAR WORSE did not happen!

Or in other words, having the wisdom or insight to understand that your “mistake” was very small and limited, and could have been 1000x worse!

For example the other week I slipped down the stairs (while wearing slippery socks on the slippery stairs). I had a major headache after it and pain, but instead of bemoaning my injury, I thought:

Oh shit, thank God this didn’t happen with me while I was holding the baby!!!