Whenever you wonder about all that you could have done, it futile.
You can’t do it anymore.
And no amount of thinking or regret will change that.
Here are better questions to ask
What stopped me from doing it? (And do those things still exist in my life?)
What was it that I didn’t know back then? (And I know today?)
Regret will keep you in the past.
Reflection will bring you out of it.