I realized not long ago that I have this odd habit. In the grocery store, I look for what I think will be the fastest line. It may not be the shortest, depending on a number of factors I balance in my head, including what is happening at the cash register and so forth, but I select it as my best guess for being the fastest. If I'm wrong I react to myself as if I have made a mistake, failed, lost the game.
I think I want to change that mind set, slow down, and not worry about a couple of minutes lost here and there.