At least one source claims that over 300,000 people signed up for National Novel Writing Month (November) last year, and I'm guessing that about 5% of them actually achieved the 50,000 word target by the 30th. If you're thinking about joining in this year, you have about five weeks to gird your loins, sharpen your pencil, or polish your keyboard.
First, if you're one of those people who has always believed you have a book in you, now's a good time to find out. Keep in mind that the catchy title is misleading. You won't write a book in a month, partly because a novel is longer than 50,000 words and partly because you're going to have to revise everything several times to make it coherent. If you don't believe that, maybe I can discourage you after all.
Second, trying to write 50,000 words in a month will help you find your most efficient process. Do you write more comfortably early in the morning or late at night? Do you work better in one long stretch or in shorter bursts of 30-45 minutes? Do you find it easier to type at a computer or use a pen or pencil and write your first draft out longhand? Can you simply jump in and start writing, or do you prefer to outline and create character biographies first? Writing, especially fiction, is a personal and intimate process, so nobody else can really tell you how to do it. You need to experiment and learn from your mistakes. Once you can get words on paper, you can learn more about plot and character, better point of view choices, and all the other mechanics.
But the first task, especially if you're new at this, is learning how much effort it takes to produce an average of 1667 words--roughly six and a half pages in 12-point font--every day. For the newbie, this is a daunting task. Even the act of sitting long enough to do it is rough, and you need to resist the urge to check your email, play computer games, or edit your picture files. Many established writers set daily word limits for themselves. Stephen King expects to write 2000 words, roughly eight pages, daily. I'm not sure, but I don't think he outlines. Neither do Dennis Lehane or Tess Gerritsen. Robert Crais outlines and plans, maybe because he got his start writing for television.
Keep in mind that if you're going to produce that much every day, not all of it will be brilliant. That's the biggest secret I can offer you. There are no obscure psychological tricks I know except giving yourself permission to produce lots of crap. Think of your first draft as a block of marble. The revision is the sculpting part: chipping away everything that doesn't look like an elephant or the Venus de Milo. Don't worry about whether what you're writing is good or bad. That comes later.
Some people (I'm one of them) like to do a rough outline or character background. I try to create a sequence of fifty scenes before I start the actual writing, then plan to produce at least one complete scene daily ( I NEVER quit in the middle of a scene because I'll lose the rhythm overnight). For whatever reason, my scenes average about 1600 words, so aiming at one a day keeps me on the target. By the time I write a complete first draft of the book, I'm often on the fifteenth scene list, or even more.
But sequencing and pacing come with practice and NANO is a great first step toward that goal.
If I write that quickly, I begin to find the rhythm of the book, too, and learn when a scene is in the wrong place or needs a different point of view. Then I change it on my outline/scene list. Actually, my first draft is that scene list.
Remember, if you write 50,000 words in a month, it's only the beginning.
But it's a great beginning.