That's an actual screenshot of what I wrote today. No, I didn't finish the 50K word NaNoWriMo goal, but I did finish writing the last scene of the novel I planned out for it. My estimates were right on: I came in just under 30K.
So I just wrote my second novel... but it is shorter than a short story-turned-novella that I wrote a few years ago. Kind of feels anti-climatic, but it is close to the right range for middle grade, and I have a lot to add to it. I tend to write in dialogue and character thoughts, so I need to paint the settings and character descriptions.
I also tend to convey all emotion with the lowering and raising of the eyebrows, or shrugging, or nodding. So as well as going back to weave in the ideas I came up with as I was writing, I need to express the character's emotions more elaborately.
To get the arbitrary number of words that NaNoWriMo has deemed a novel, I am now writing character descriptions and setting descriptions. I've found it useful in the past to do this and then weave them into the actual text. I listed out and have more than ten of each of the two categories, which some simple math shows will result in 20K words.
I also got my first 4K day in a week. That's a relief because I started to feel like it was a fluke that I did it the first week. Nice to go into the busy weekend on a positive note.