Don't Write the Sequel Until They Pay You

Here's some good fundamental advice I got from a published author. I was wondering how best to spend my writing time now.

Should I plunge into an outline for the sequel to the book I just finished? Or should I launch into something totally new. The argument for the sequel, in my head, went something like: well, once they buy the first one, I want to be ready to go with the second!

This, of course, assumes someone will actually buy the first one. Blah blah blah, assume makes an ass out of, well, me, mostly.

So don't plot or plan or write your sequel until someone buys the first book. Yes, I do have a strong idea of where the story should go. I figured that out before I wrote the first book. But it could very well be a big fat waste of time if I spent more time on that storyline if no one else likes it the way I do.

So I'm doing research and making up stuff for another book, and I'm in that happy stage where the world is jampacked with possibilities and I can do whatever I want with anyone and everything in the world. Structure and limitations come later.