Voice comes to you through a spell, a trance. The best voices are not you... they're a little away from you.
“I spend eight months outlining and researching the novel before I begin to write a single word of the prose.”
“I'm a very lazy person by nature. I have to be really engaged, and then I go straight from lazy to obsessive. I couldn't study chemistry, but I could memorize all the books for Dungeons and Dragons. It was ridiculous. The trick is to find what I like to do.”