I can only pass on what just about every other writer has said: Read, read, read, write, write, write. If you've ever studied a musical instrument, you'll know that not only does practice make for better playing, it also changes how you hear music. By writing regularly and reading constantly, you'll start paying attention to how a writer words things, the flow of the narrative, the precision of detail that sparks your imagination. You find your voice via vocalizing. Let reading and writing become a habit and you'll find yourself a happy addict.