If you've ever had a stretch of poor play where nothing seems to go right, you know what it's like to be in a state of "paralysis by analysis." It happens to Tour players, too. Your mind floods with countless swing thoughts ("keep your left arm straight" and "don't move your head" and "turn around your right leg like a post") that, while true, create so much brain clutter that you can't swing with the natural rhythm and tempo you need to hit effective and repeatable shots.
Rather than bogging down your game with swing thoughts, you should work on drills that will help you become a more instinctual player. Your goal should be to become a feel player, where your only swing thought is where you want the ball to go. Let's get started.