They don't make the same mistake over and over again.
There are 3 steps in order to ensure you don't make the same mistakes again.
a. Internalize the mistake.
b. Improve the possibility of success.
c. Iterate and try again.
It comes down to studying your mistake, plan your next steps, and have the self-disciple to carry out and execute your plan.
You'll still be able to report anonymously.