The phrase, "what if", makes us wonder what would have happened, if life had taken a different turn or if we had said yes or no to certain things or certain people.

Then, looking back to the past, and evaluating all our actions, and the repercussions, we sometimes have regrets, or feel overjoyed

And I must say that I agree that

every hole we fall into is often necessary in order to shape future directions.

Because, that's exactly what we discover in the future

Yes, there is no use regretting our decisions, we can only learned from them, and never repeat them