Remember: a story is not a vignette. It has a beginning, middle and an end. It is not merely a snapshot in time.
Chuck WendigRead your work out loud. Don't give me that look. Read your work aloud. Don't argue. Don't fight. It will help. I promise. I promise. I guarantee it. If you find it didn't help you, lemme know. I will let you Taser me in the face. And by "me," I mean, some other guy who will be my stand-in. Probably some real estate agent or tollbooth attendant.
Chuck WendigThe easiest way to separate yourself from the unformed blobby mass of "aspiring" writers is to a) actually write and b) actually finish. That's how easy it is to clamber up the ladder to the second echelon. Write. And finish what you write. That's how you break away from the pack and leave the rest of the sickly herd for the hungry wolves of shame and self-doubt. And for all I know, actual wolves.
Chuck Wendig