I’d say the biggest problem that golfers have is setting up to the golf ball in a manner that will allow them to make a free swing.
It’s so simple. Do this in front of the mirror.
1. Stand up straight with your head high, shoulders back with a driver your left hand (lefties remember all of the rights and lefts are opposite for you)) and your feet about shoulder width apart.
2. Bend at the waist and knees the same amount at the same time until your arms hang straight out of your shoulders and you are balanced over your feet.
3. Grab the club with your right hand and notice that it grips the club lower, so allow you right shoulder to be lower than your left shoulder…and bump your left hip forward an inch or two to balance out your right shoulder being a bit lower.
You now have perfect address posture. Watch the video if anything is unclear.