Do you ever look in the rear view mirror and re-litigate decisions in your head? The “woulda, coulda, shoulda” shtick. Most of the time it’s not a productive exercise, but it can be enlightening if you use it as a barometer to asses your tolerance for risk and openness to learn.
As you push the envelope you are going to make mistakes. Slip ups are part of being out of your depth and wading into new space. I’d argue that a life of zero defects probably means you aren’t experimenting enough.
Experimenting and trying new things means giving up some of the outcome control, but it also accelerates learning and exercises your risk muscle.
Look back and learn.