I never do NaNoWriMo. Most Novembers, I use the excuse that I'm in the middle of revising, but I have other reasons.
First,
I trust my process. I write by working every day, unless I’m ill, traveling or
extremely busy. Writing every day is a luxury, and I cherish it. Churning out a
specific word count daily would make writing a chore.
Second,
there are good and bad writing days. In the end, word counts are irrelevant. One
great sentence can make a good writing day. Cutting a few thousand words can make
a better one.
Third
I’m not much of a joiner. I wish all the participants of NaNoWriMo luck,
inspiration and great writing days. It’s just not for me.