Most really good fiction is compelled into being. It comes from a kind of uncalculated innocence. You need not have your ending in mind before you commence. Indeed, you need not be certain of exactly what's going to transpire on page 2. If you know the whole story in advance, your novel is probably dead before you begin it. Give it some room to breathe, to change direction, to surprise you. Writing a novel is not so much a project as a journey, a voyage, an adventure.