An easy way to hit the ball consistently well is for it to be in the same place every time you take your stance.
As easy way to be an inconsistent ball-striker is to move the ball all over the place.
Which one do you do?
You can hit fat or thin with a perfect swing if you keep moving the ball around in your stance. These two videos show you how to put the ball where it belongs.
Golf instruction books by some pros tell you to play everything off your left heel. That’s really beyond the capability of most recreational golfers.
Other books tell you to put the ball opposite your left heel with long clubs and move the ball toward the center of your stance as you move down to shorter clubs. That’s asking you to have a different swing for each club. Again, no.
One spot for your driver, one spot for a ball on the ground. You really can’t go wrong that way.