Most importantly? Write. But there's more to it than that. Ask a dozen authors and you'll get a dozen answers. The Los Angeles Times went one step further and asked more than 200 writers all kinds of writerly questions in a survey and made their responses into an online board game.
It's only a stone throw from getting your first library card to Scorsese making a movie based on your book. Or not. Instead you might find yourself in an endless loop of writer's block until you finally end up writing an essay about the death of the book. But let's not get ahead of ourselves and take a look at my result now. Shakespeare ... my oh my, I think I'm feeling seriously flattered.
Now go ahead and roll the die! And don't forget to share your result with me!