Best of luck with your NaNoWriMo project. I think you have a good mindset going in and I love how you mention that you'll reflect and change the approach/opt out if needed.

I have a friend who was in college the past few years for NaNoWriMo. Her goal was to write a sentence every day. I thought it was a great goal for her!

Every little bit counts. Even if you don't meet the word count, you still win by writing.