I struggle with this as I do my best shooting when I do not "care" about the outcome. When I start to be concerned with the results or I "need" a certain score, my performance suffers. This is for Bullseye, which is, for me, a very frustrating and fulfilling challenge.
I shoot at my best on demand when I can ignore everything but the process itself. The outside world seems to melt away, I am focused on the sights, my breathing seems to not be a concern, and my sight wobble is regular and smooth. Fatigue is not an issue and the shot breaks cleanly and without strain. The closest thing I have seen in media to that state is when Kevin Costner's pitcher "Clears the mechanism" in For Love of the Game. Been doing it for more than thirty years and on some days I still cannot get there. On those days, my performance is sub-par, and I have to struggle to be consistent.