There is nothing that can disrupt a golf swing more than if you look up to see where the ball went before you finish hitting it. This problem not only affects long shots by taking balls off-line, it will also affect the way you putt. To avoid this problem, many players have adopted a very useful device for dealing with it. They will begin counting to 3 after the swing is completed before they look up to see the direction of the ball. In the meantime, they will concentrate on their swing and the ball where it rests.
Golfers think that to increase power in their swings, they have to sway back from the target on the backswing and forward on the downswing. The reverse is true. Instead of swaying, players find if they hit the ball with a firm side (the one closer to the target), they will not only increase their distance, they will also improve their accuracy. Concentrate on keeping your head in the same position throughout your swing to correct this problem.
Shift Your Weight
If you do not shift your weight to the side away from the target on your backswing, then to the opposite side on your downswing, you are robbing yourself of distance. Many golfers will keep their weight on the side closest to the target to improve their accuracy. But because of their position at address, they are more likely to slice the ball because they cannot get their hands through the ball at impact because they leave their club faces open. The opposite is true for golfers who allow their weight to "hang back" on their other side because they will have a tendency to close the club face at impact and create a hook. Take your address and keep your weight evenly distributed, then work at shifting it to increase your distance.
Don't Tense Up
Many golfers put a choke-hold on their clubs, causing them to tighten the muscles in their arms and possibly the rest of their bodies, resulting in restricted swings. That action often causes less rotation of wrists on the downswing that will sacrifice distance and accuracy on their shots. If this is a problem you need to overcome, think of your club as a tiny animal and grasp it only tight enough so it won't get away. By doing so, you will swing the club more freely, and that will improve your accuracy and your distance.