Thank you all so much for your words of encouragement.
You're all quite correct. I shall persevere, and I hope everyone else who finds themselves in the middle of writing an over-worked sub genre does. My husband reminded me that my goal was just to get the book out of my head and on to paper - publishing, getting an agent and making mega-bucks (hrmph!) were never in the equation. I'm writing to feel the joy, and to see the black and white evidence of my imagination. So there!
I hope to bring news of new chapters soon. And as always, I'm having enormous fun reading your blogs - so thank you for that too.