Nine months ago, I posted what might be the most valuable advice I have ever given you about the golf swing. It is to hit the ball first, and the ground second. If you would like to read that post again before going on, here it is.
"Ball first, ground second." You would not be undone by making this a mantra. On every shot except the ones you hit with a driver and a putter, this is the basis of a good shot. You cannot get too good at this.
The post has a drill you can use to teach yourself this move. There are training aids that help you learn it. You might even take a lesson, which would be the best way to go about it.
There isn't more that I can say about it, except that if you want to be a different golfer by the time the 2013 season opens, learn how to do this. It might take that long, but your effort will be worth it. It truly turns golf into a different game.