A local businessman once told me, "The person who fails is the one who gives up too soon."
A friend says, "You need to finish something you already have started before you start something new! I don't know why you're wasting time doing another NaNo novel."
Sometimes I say to myself, "Am I NEVER going to publish a novel?"
I have even said, "It's time to build a bonfire in the backyard and just burn everything I've ever written."
The work of a writer is just like the work of anyone else. It takes time and lots of practice to improve it. So that's what I've been doing. And each time I write a novel for NaNo, I accomplish a better quality novel, hone my skills and, now, I am ready to finish something. It's time.