Grats! That's a great feeling. You think it's going to end with that first one, like it's magic. But then, you finish the second one and realize that it feels just as cool to finish that one as it did the first!

There is no sense of accomplishment like writing a novel IMO.

Even with my 'complete' manuscripts however, I always, always think 'Hmmm, I've gained so much knowledge now! I could go back and make that even better.' I have to fight that.

Grats and best of luck to you!