I have days like that also. I can usually get it down to one of two things. One: my mind is racing and I'm trying to hard or pushing myself to get things back together. Or two I am just too tired mentally or physically to concentrate. Either way, I have to take a step back before taking a step forward. Sometimes it just takes closing my eyes for one or two minutes and relaxing between shots, other times, it's just time to put it down for the day.