*Can* is honest. Failure doesn't teach automatically — plenty of it simply hurts and then leaves.
The extraction takes a deliberate step. Pilots do it formally: after an incident someone writes down what was seen, what was assumed, and where those two came apart. Not blame, sequence. Without the writing, the lesson evaporates inside a week and the same mistake waits patiently to be made again.
You don't need a form. You need one sentence, somewhere you'll see it: *the part I got wrong was ___.* Filling that blank honestly is the difference between failing twice and failing once.