Read this somewhere that a tour pro after a bad hole would retie his shoes tighter than they were and play the next hole that way to take his mind off the bad hole. Have had to try it a couple of times and I found that all I want to do is play that hole better than the last one, so that I can loosen the shoes back up. Also did this in a couple of tournaments when things were not going the way that I wanted them too. After a bad series of holes and being 7 over par after 8 holes, I set a goal for myself of breaking 80.