The right alignments means everything to get the ball off in the right direction. Another major thing with golf is to have patience. Golfers often get nervous, especially on the downswing. You want to relax so you can swing with your whole body fluidly with your hips turning naturally on the downstroke, not just with your arms alone. Lefties need to rotate to the right as fully as possible to power the swing, leading with the right hip with the hands following through. You lead our swing with the right hand and finish with the left, your dominant side. You want to end your swing on the balls of your feet with your hips having made a full rotation.