I'm not feeling as disappointed as last year, however. As opposed to last year, I didn't restrict myself only to the novel, and so I've written a number of shorter pieces that I could edit and publish. Plus, I've learned that I need more research, and have a better idea of the details I need to finish.
NaNoWriMo has been helpful in getting me to just write, and I realize that, even if 1, 667 words a day is unrealistic for my life right now, 500 or so daily words are achievable.
I'm looking forward to writing more for the rest of this month and in 2018. The adventure continues.