A 10-pound sack of potatoes lasts a long time.
You don't start out writing good stuff. You start out writing crap and thinking it's good stuff, and then gradually you get better at it. That's why I say one of the most valuable traits is persistence.
There is no end to what a living world will demand of you.
"All struggles are essentially power struggles. Who will rule, who will lead, who will define, refine, confine, design, who will dominate. All struggles are essentially power struggles, and most are no more intellectual than two rams knocking their heads together."
What I'm working on now - I'm back to fantasy, although considering that it's me, I'm turning it into a kind of science fantasy. It's a vampire story - but my vampires are biological vampires. They didn't become vampires because someone bit them; they were born that way.
And I have this little litany of things they can do. And the first one, of course, is to write - every day, no excuses. It's so easy to make excuses. Even professional writers have days when they'd rather clean the toilet than do the writing.