YeeeeeeHaaaaaaw. I made it in my first year on NaNoWriMo, National Novel Writing Month. 59,000 words + in the 30 days.
How did you do? One word is a good start on that book that is in you. Old Chinese Proverb - The journey of a thousand miles begins with one step. I don't know why we always quote old Chinese Proverbs, but they sure do come in handy when you need an authority for reference.
Okay, so you have some words that were put down in a hurry. What now? You may be so good that this doesn't apply to you, but the rest of us have a lot of editing to do. I looked back over the first five chapters of my effort and realized it is going to take a lot of work, not just in spelling and grammar, but in continuity and just plain prose, to make it work as a story, let alone a book.
The first thing is a time line with the characters accounted for, or else you have a character in two places at the same time or almost dead in one scene and kicking butt in the next, two hours later. Might work for Batman, but not my heroine.
The second is continuity of location, people, times, clothes, etc. as you go through the story. Notes under your timeline will help with this.
My third thing is dialogue. Make it fit the scenes and keep all the superfluities out of your characters' mouths.
If this helps you, feedback, please.