Writing advice is not the product of an equation. "If you do X, then Y will occur" is false in this instance. "If you name a character John Q. Hymenbreaker, your book will be an instant bestseller" is crazy-talk. Writing advice is not about providing certifiable answers. It is about making suggestions.
Chuck WendigWhen in doubt, the rule of threes is a rule that plays well with all of storytelling. When describing a thing? No more than three details. A character's arc? Three beats. A story? Three acts. An act? Three sequences. A plot point culminating in a mystery of a twist? At least three mentions throughout the tale. This is an old rule, and a good one. It's not universal - but it's a good place to start.
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 WendigLet someone else take a crack at [your story]. Sometimes, even after time has passed, we're just too close to the thing. You don't want to kill your darlings or, maybe it's the opposite: you just want to kill all of it with cleansing fire. Let someone else confirm or veto your feelings. They'll also bring new questions and complexities to the table, too.
Chuck WendigRemember: a story is not a vignette. It has a beginning, middle and an end. It is not merely a snapshot in time.
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