The main goal behind practicing is consistency, and the only goal in golf is to get the ball in the hole. The golfer that knows where the ball is going to go has a distinct advantage in reaching that goal. Maybe you generally hit your driver about 220 yards, with a 15 yard slice / fade. It may not be the prettiest shot in the world, but if you can do that every time, you really don’t have a whole lot to worry about sitting in the fairway all day, do you? Practicing with repetition to develop consistency will drastically improve your golf score. Whether you can practice a few hours a week, or a half hour, focus on what you’re trying to accomplish with each shot / putt, and reap the rewards.
This video will explain to you a number of drills that you can practice to help you improve and make your game consistent each time you play