The best way to improve your golf game is to remember that it is just a game after all. We all tend to take things a bit too seriously, even our hobbies, and turn them into something akin to another set of chores. So don't stress yourself out too much on improving your golf, but I can give you some tips that will most certainly help you nonetheless.
The number one thing that will improve your golf game is not new clubs, not a bunch of lessons and not five hours of practice on the driving range - it's what I call expanding the cup. getting a lot better at draining putts will have the biggest impact on your score, far more than any one aspect of a round. Here's how to make the cup look a whole lot bigger in just a few easy practice sessions.
Take four golf balls and a ruler or measuring tape, you can also trace this out on a piece of paper if you like and just cut it out and place it on the floor. Place the first two balls six inches apart to form what is going to be the base of a triangle. The third ball goes six or seven inches above the line between the other two balls. If you're doing this on paper you will draw an arc between the top ball and the other two and remove everything in between.
This area represents the true size of the golf cup. A round object will fall into a hole when it's centerline crosses the threshold of that hole - unless other forces keep it from doing so. the reason a whole bunch of your putts are rolling right past the hole is that they are going too fast to simply fall in. If you putt too fast, angular momentum overcomes gravity and keeps the ball rolling.
The area between your three golf balls represents an area between which the ball will always fall into the cup. All you have to do is practice putting a ball so that it comes to rest anywhere between the other three. The cool thing is, it's a really big area to hit, the only thing you'll have to work on is speed, which is the real key to great putting.
If you get to the point where you can get your putts to stop in this much larger semi-circle, you'll be surprised at just how much your putting will improve, just a week or so of practice on this technique will have you draining putts you were missing just a few days ago from all over the green. Using this larger target zone is how we expand the cup, and improve your golf game.