Like McDave, I am shooting a lot at distances considerably beyond my hunting distance. It seems to make my closer shots seem to be easier. I have a very poor release in that I commonly pluck the string. My daily routine consists of a period of time off the range in which I visualize myself making the perfect release. If I can recall a specific shot, I picture the shot from the draw, the sight picture, and the smooth release with my hand simply relaxing and allowing the arrow to cleanly leave the bow. I do this many times throughout the day to develop a mental approach geared toward the desired action. Visualization sounds silly to some, but I believe it has definite value. Once on the range, I take several shots from only a few feet from the target with a smooth release as the only intent. Accuracy is not a concern at this point. Then I move back to the distance I want to practice at. If I am shooting well, I may shoot 50 or more arrows. If it is a crappy day, I back off and then come back later when I am more "together". Many days, especially since the shutdown, I may do two or three shooting sessions per day.
To summarize my regimen in practice:
1) I spend considerable time visualizing the perfect release to build a good mental image.
2) I make several shots concentrating solely on form , release in my case.
3) shoot from my chosen distance, paying attention to form and accuracy. NOTE: I only shoot one arrow at a time. That way, I am focused on a single shot rather than flinging a bunch of arrows at one time. This allows a few moments to reflect on each shot while I retrieve the arrow.
4) stop if I get tired or am having one of those frustrating days that is not producing results.