When stressed, I remind myself not to overthink about the past and what I should have done. I remind myself that those past decisions were based on the facts and information I had available at that time. Similarly, I try not to project too far into the future, as this does not seem too constructive. Like the famous line about the economist who predicts nine of the next two recessions, with enough effort, I could also project a wide range of possible negative outcomes. That effort seems neither productive nor helpful.