Here,here.That's the truth.I do a heck of a lot of stump shooting myself too.If every deer would give me 2 shots I'd have to buy an extra freezer.I burn a hole at a very small spot on my target with my eye [focus] and no diistractions physical or mental and let er fly.I know an archery store owner self bow maker that writes the words FOCUS on the belly at the fade of his top limb.In fact if a person is focused enough nothing distracts you and then let your routine take over.No rush,no hurry just loooose with confidence.The key for me to learn was to diagnose exactly what I did wrong if you know your equipment is right.
Now there is such a thing as shooting too much too.Getting tired.Your form will suffer.A person needs to recognize that too,but you should be able to shoot 50 arrows a day at least.
There's a long bow crack shot shooter I shoot with at times[he has shot muleys,elk, and bear at 50 yards many times] that says to shoot a compound for a couple of months every day to get accustomed to coming to your anchor besides the blind butt shooting.