If your ball goes left way too often chances are you're standing up too soon. As you can see from these still of DJ in what I call "position A," his shoulders are nearly vertical and his hands are moving left of the target with the clubface pointing upward and left of the target.
This is how DJ has a strong grip and doesn't hook the ball.
Notice how his neck is parallel with the ground. He's not looking down onto the ball from a vertical position, he's looking level at the ball from a level position - as if the ball were eye-height if here were standing vertically.
To achieve this position, swing a club and look upside down, behind you off the left side of your body. Not that you really need to do this, but doing this will show you what it feels like to truly turn through the shot properly.
When you're looking downward at a ball below your head with a vertical or close to vertical neck, it completely impedes your ability to turn. Your head is never going to follow the body - it's always the head that leads and the body follows
The animation isn't perfect but hopefully you get the picture. Imagine the left side of your body is or is attached to a flexible rubber torsion bar.
By imagining the center of rotation is the left side of the body the entire golf swing changes and becomes very powerful and easy. When we think spine centered rotation, we have to think of things rotating different directions and we don't do that well.
Think of the shoulders being attached at the left shoulder to this imaginary tension bar so that it only rotates in one direction - like a pinball flipper or the way we swing a baseball bat.
At the maximum of the backswing, the tension bar is bent and twisted storing kinetic energy. The torsion bar will be strongest nearest the ground therefore as you allow it to unwind it'll pull the left hip first and then the shoulders.
A simple change in perception can change everything.