A golfer argues you need to play constantly to improve, identifying weak shots and drilling them repeatedly. Bad scores will happen, but play enough rounds to stop caring about individual ones. That detachment builds the resilience that actually lowers your scores.
Golf is really hard. If you want to get good at it, you have to play a lot of golf. You have to figure out what shots you don't have. You have to adapt and refine. Most people don't want to do this because it creates a lot of scar tissue. You play a lot of bad rounds, and if you let that— if you let that make you believe that you're not capable of shooting the scores, you won't be able to shoot the scores. You have to go out there, do it enough times so you don't really care what you actually shoot. Simply because you've done it so many times. You want to shoot lower scores, you need to play a lot of golf.
