Shooting any bow requires concentration. As great as Byron Ferguson is, he said in his book that he never shoots more than three arrows in a row when practicing because that is as long as he can maintain absolute concentration.
I try to stick to that too, but if I am struggling, I shoot one, walk up and pull it, walk back and shoot it again. I focus on making each shot count. Keys for me: pick a spot, focus on the spot, anchor, increase back tension until the shot happens. Concentrating on back tension keeps me from plucking the string (my major bad habit).
Even compound shooters need to practice and need good form. I've seen too many "just a little back" and spine shots on TV to think otherwise.