Mission: Prepare for NANOWRIMO

Preparing for NANOWRIMO has been exhausting. I have finalised an outline for my current work in progress, "Strangers In The Dark," an erotic romance that explores the  terrifying power of vulnerability, and how the right person will accept you for who you are. I've been told that it's considered best to start with a fresh story, with no words written yet. I wonder how detailed an outline can be before it can technically be counted as cheating? It's going to take a lot of wrangling to organise writing almost 2000 words a day around family commitment, work and study...I'd love to know if there's a secret to it :)