I'm always a little surprised at how much time passes between my posts on this blog. I mean to write them more often but...
When my time or energy are at a premium I choose writing a novel over writing about novel writing.
I hope the same is true for you. Given the choice between reading about novel writing or working on your own novel, choose your novel first. You can read about novel writing after you've completed your daily word count.
And, yes, I've completed mine for today. I'm about two-thirds of the way through my latest, the point at which -- you may recall -- I begin to have serious doubts about the book and how it's being written. (Stupid idea, poorly done.) Not too much of that this time. Yet. I assume it will come.
And, it's at this point I begin thinking about what I'd like to write next. The idea, a character or two and a "what if?" came to me the other day (a kids' book) and it's been enjoyable considering them, but...
First things first.
Like you, I need to finish the one I'm working on now.
That's always the case. Even after dozens and dozens of books.
Just keep writing.