I will beat myself up over the tiniest mistake for an unreasonable amount of time; I will run through it in my head over and over again, agonising over how stupid/awful or whatever I was at the time. There is nothing more unproductive, is there? It literally serves no purpose whatsoever. It is fine to reflect upon something in the aftermath, but beating yourself up over it is just beyond pointless. And yet, I cannot stop doing it. The evil scripts are running the show here, unfortunately. =/