"Success is not the result of spontaneous combustion. You must set yourself on fire." -Reggie Leach
A lot of people say to find success with your writing, you have to keep writing. That's important, but the more important thing is to find the fire behind your writing. What makes you write? Why do you keep at it? Why don't you stop?
I think the passion the writer has for writing is the difference between writing a fiction "journal" and writing a fabulous book. I think Jack London sums it up here:
"I would rather be ashes than dust! I would rather that my spark burn out in a brilliant blaze than it be stifled by dry-rot. I would rather be a superb meteor, every atom in me a magnificent glow, than a sleepy and permanent planet."
Without that spark, without a hunger to fly through the heavens ablaze, all of us are just people who write for fun. That spark is what makes us authors.