Golf is much like a war rather than a battle, in that there are many different components such as driving, chipping and putting that could be considered the ‘Battles’ of any particular golfer to improve, and then cumulatively if you get all of them just right then you end up having a great war and lowering your golf score.
Now, improving your short game is one key aspect of that overall ambition, and there are several techniques that you can employ to help. One of them is getting yourself more backyard putting greens practice, as the more time you spend practicing the better. Whilst another option is to imporve your current equipment, or get some extra golf lessons.
Both can be a good approach, and I discuss them extensively here.
To start off go and read this article about Backyard Putting Greens, and get cracking on lowering your score!