> Don’t force it. I’ve gone weeks without writing anything. It happens.
I'm a reasonably prolific author (six books, two of them have fourth editions coming out in the coming year, all published by O'Reilly). Aspiring writers ask me for advice pretty regularly. (I'm happy to share, if anyone's interested and has questions.) One thing I always tell people is to read Stephen King's "On Writing: A Memoir of the Craft" -- people dismiss his work because he's a horror writer, but in my opinion he's one of the best writers of the past century. This book is full of excellent advice to writers, especially aspiring book writers. I found it valuable to my own work, even as an author of technical books.
Most of Batnick's advice in his post is excellent, but I strongly agree with the advice not to force it. This excerpt from "On Writing" sums it up better than I can:
> Once I start work on a project, I don’t stop and I don’t slow down unless I absolutely have to. If I don’t write every day, the characters begin to stale off in my mind—they begin to seem like characters instead of real people. The tale’s narrative cutting edge starts to rust and I begin to lose my hold on the story’s plot and pace. Worst of all, the excitement of spinning something new begins to fade. The work starts to feel like work, and for most writers that is the smooch of death. Writing is at its best—always, always, always—when it is a kind of inspired play for the writer. I can write in cold blood if I have to, but I like it best when it’s fresh and almost too hot to handle.
(King, Stephen. On Writing: A Memoir Of The Craft (p. 153). Scribner. Kindle Edition.)
I recognize that feeling from my own work -- again, as a writer of non-fiction, technical books. I think it's an excellent model for anyone looking to write.