How do you know what story is worth executing and publishing? Do you ever have doubts as to whether you should continue this story or start on a new one?
I have to believe in the story before I can begin writing it. The characters live within my head, talking to me until I know their motives, personalities, and how they would interact in any given situation. They need to be as real to me as any person I meet before their dialogue is typed on my screen. I need to see the ending before I can begin. If this doesn't all come together, if the voices aren't loud enough, and the story isn't compelling enough to hold my attention, then it's not ready to be told.