All it take is practice and more practice!

Digital photography is no different from any other skill in that the more you do it, the better you will become. So shoot as many photos as you can, in as many different light situations as you can. As you shoot, jot down the camera setting you used and the lighting conditions at the time you snapped the photo. Later evaluate the photos to see which setting worked best in which situations.
After you have spent so time experimenting with your camera, you’ll start to gain a feel for what tactics to use in different shooting scenarios increasing the percentage of great photos. As for those photos that you make the grade, you can delete them or keep them for yourself.