1. Establish a time and place to write, and stick to it
Novelists lead boring lives, by intention. Yes, they take vacations, and socialize, but they know that novels are written alone, in solitude.
Don’t despair if solitude is impossible. Even if you have a full-time job, three kids, and many commitments, you can nevertheless complete NaNoWriMo if you set a writing routine, and stick to it.
You’ll need to write 1600 words a day to complete 50,000 words in a month. It takes me an hour to write 1000 words when I’m starting a novel. Once I’ve written the novel’s setup — the first three chapters — I know the people and the situation, and my writing speed increases automatically.