The only "rule" besides having the goal of 1 writing task/day.
You can have other goals also.
Your goal can be to write a certain number of words per day.
Or you can aim for researching every day, or doing a different writing task.
Have fun with it!
Novelember is all about having fun writing.
About Me
I've written over 16 novels. Most of those were practice :). Right now, I'm finishing an over 700,000 word Adventures in Odyssey fanfic. After that, I plan to start a new original novel. We will see what it turns into. It could be romance, set in space, a sequel to Justice Lost, a mystery in a small town.... I have several ideas. We'll see which one arises when the time comes. I want to write all of them, and more. I want to try writing different genres too, like thriller, horror, etc.....
I love writing and I never want to lose that love because writing is like nothing else in the world you get to immerse in the mind of someone else. Experience the world through their eyes. What could be more wonderful?