My buddy tried that guided breathing thing after getting stuck on I-95. He said he started counting breaths instead of swearing at brake lights, and his whole body just unclenched. He missed his exit because he was so zoned out, but he didn't even care.
Thought missing an exit meant you failed at adulting. Had a similar experience on the freeway last week, where I just decided to breathe instead of panic. Actually found myself smiling when I realized I'd gone too far. Now I see it's less about the mistake and more about how you react, which is kind of the point, right? (And I never thought I'd say that.)