Try to acquire the weird practice of savoring your mistakes, delighting in uncovering the strange quirks that led you astray. Then, when you have sucked out all the goodness to be gained from having made them, you can cheerfully forget them and go on to the next big opportunity.
You know, everybody knows some of what politicians say is malarkey, and having somebody there to call them on it is good. I'd be happy to do that any time and any place.