Here’s what I suggest to practice next time your out of the range. Start with the proper address, feet slightly more than shoulder width apart, knees bent, weight distributed evenly accross your feet (not on your toes, not on your heels). Take the club with your off hand and drop it down into your address position with the entire club head touching the ground. The end of the club shaft should point right at your belt buckle. Now take the club with your strong hand and take your normal grip. Now start your backswing.
Don’t sway back, you should turn your hips to a 45 degree angle, which means your back side should also turn 45 degrees. If your backside is pointing directly at the target you’ve probably over rotated your hips. Unless you are super flexible, this will not only cause you to over swing, but it can also cause back problems over time because of the torque you are putting on your back. Fourty-five degrees is plenty of a turn.
Once you get to about 45 degrees you begin the downswing by dropping your arms and unwinding your hips. Once you get the arms and hips in proper sink, you are on your way to creating a very strong golf swing. Like I mentioned before a large portion of the power in a proper golf swing comes from unwinding the hips through the downswing, but don’t overdo it or you’ll end up hitting a major hook because your arms won’t be able to catch up with your hips. Just remember 45 degrees is the key, the speed of the hip turn is just something you’ll have to work out through practice at the driving range.