Everybody knows you should hit the ball first, and the ground second. Well, if you didn’t know that, you do now.
That means the bottom of your golf swing arc must be in front of the ball, not underneath it, and definitely not behind it (that’s called hitting fat).
These pictures show what that means.
Here’s an easy drill to learn how to do that. You need to be on a mat, without a ball.
Lay a tee on the mat out of the way of the club path, and pointing to where the bottom of the ball would be. Aim for a spot ahead of the tee and hit the ground with the sole of the club on that spot with your swing.
If you didn’t hit the spot, figure out what correction to make. Once you start hitting the spot, repeat the drill over and over. This is the swing that hits those rockets that make you wonder, How did I do that? Now you know.
You need to do this on a mat for two reasons. You can brush grass tops and think you hit behind the ball when you really didn’t, and more because when you get used to doing this on a mat, you can feel, see, and hear where the club hit the ground.