There is a very steep learning curve with photography. The first stage is to experiment as much as possible, and try to make as many mistakes as you can. The more you shoot, the more learn. You will quickly find out what works, and what does not. Once you have a grasp on this knowledge, I find that it is best to shoot less. Take fewer photos of your subject, and try to make every photo count. This will force you to reconsider your choice of composition, subject matter, and camera settings. You will soon find that when you shoot less, you may very well see an increase in the number of “keeper” shots.
Challenge yourself by going to one of your favorite shooting locations, and limiting yourself to just 5 photos. It is quite nice to return from a day of shooting, and only have a handful of photos to download.