As stated above, good solid practice at extended ranges will make the closer distances look easy, then maybe your brain won't freak out on you. I have been doing this for quite a while and still have doubts at times. This year I am 4 for 4 on deer, so it's getting easier, but if I think about it too much during a non-hunting time, I start wondering about myself. When it comes time and the animal is ready, instinct takes over and I don't think about it, which is a good thing.