Todd's comments are spot on.
To add to this. I have a good friend who is a Master class USPSA shooter. He related to me that for a long time he was a B class shooter, and then at one period in his shooting he learned to let go, trust his hits would be there and spent one season in A class before making Master. It wasnt about increasing the amount of work for him, it was about getting an intuitive switch lit . Now that switch cant be hit if your not shooting at all, but I would bet that "just shoot more" doesnt do it either. I know one guy in particular at our club "dont need no stinkin training" who may shoot a couple thousand awful rounds a week, and while he prob is on the up side of average hes never going to move from there.
The same Master I referred to didnt shoot a live round all winter , and shot his first live rounds at a match I attended that he crushed.