Speed is not an indicator of quality in terms of fiction. That's true of one's relative slowness or swiftness - taking 10 years to write a book or taking 10 days to write a book (or a comic or a film or an angry postcard) guarantees nothing in terms of how good or how bad that story is.
Chuck WendigQuestion the Chestnuts. Chestnuts: the new name for boobs? No. NO. Why would you even say that? Get your mind out of the gutter. No, by "chestnuts" I mean, "those old pieces of writing advice that you hear as common refrain." 'Write what you know.' 'Adverbs give Baby Jesus hemorrhoids.' 'If you write a prologue, an orphan loses his sight.' All the "old saws" need to be put on the chopping block.
Chuck WendigYou've got all these characters and yet, you're hovering over one character like a fly over a stinky diaper. Realize that you've got a kickass superpower: you can possess and take-over anybody inside the story. With the power of Point-of-View, you can drag us along for the ride. You can shove us into their eyes, their minds, you can force us to piggyback on their experiences past and present. Sometimes untangling a knotted-up tale means looking at it from different eyes: what better eyes than those of the other characters inside the story?
Chuck WendigNobody becomes a writer overnight. Well, I'm sure somebody did, but that person's head probably went all asplodey from paroxysms of joy, fear, paranoia, guilt and uncertainty. Celebrities can be born overnight. Writer's can't. Writers are made - forged, really, in a kiln of their own madness and insecurities - over the course of many, many moons. The writer you are when you begin is not the same writer you become.
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 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 Wendig