Our alignment has our feet, knees and hips parallel to the target line but the shoulders actually have to be slightly open because we are set up with one hand lower than the other so this is the natural result
You can’t fix your swing flaws until you establish a repeatable golf swing that goes down the line every time so your errors are consistent and can thus be fixed
Keep your feet quite throughout the swing, eliminating sway and bad balance, just let the body take the feet where they need to go, left foot slightly inward on the backswing, right foot on its toe on at the finish with all your weight equally supported on a flat left foot