Lighting plays the most important role in photography and if you can manage lighting properly you can get the perfect shot. But the most important thing is what you really want out of a photograph? what you want to create? its not that you take a photo and then experiment on that! thats in appropriate. You should know what kind of photo you want and then click a photo and you'll see the difference in your photographs after the processing that how perfectly or close to perfect you can get your photograph if you work like that!

Hope this helps!