I am more confident because of my favorite bow.
I don`t even notice the draw weight, it shoots extremely quiet, and has plenty of power to crush bone if need be.
When a deer gets within range, I have learned to just concentrate on the spot I want to hit. Practice has made the shot process automatic.
I shoot carbon arrows now, but regardless of the arrow material, heavy has always been the key.
I can see my arrows fly, and they fly like a lazer
beam. When they hit, they penetrate. This I believe is my confidence crutch. I can see the path of my arrow before I shoot, especially when I`m hunting. When I draw down on a game animal, I see this flight path, and KNOW I`m gonna hit.
Hope this answers your question.