I’ve written three quality chapters in less than a week, 7-9 pages of 12 point TNR each. I say quality, but only the reader knows.
It’s weird how blind we are to our own bad writing. I remember sitting in a creative writing class, reading other people’s stuff and having to lie about how good it was. It didn’t just need edits, it was simply unreadable. And yet those same people could tell a good book from a bad one.
Until I’m published, I won’t know if I’m good or bad (or ugly), but that’s fine. My competition for a book deal doesn’t know either, unless they’ve been previously published.