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.
First forget inspiration. Habit is more dependable. Habit will sustain you whether you're inspired or not. Habit will help you finish and polish your stories. Inspiration won't. Habit is persistence in practice.
Borges said there are only four stories to tell: a love story between two people, a love story between three people, the struggle for power and the voyage. All of us writers rewrite these same stories ad infinitum.