For years I was a lead technical writer at a payments company. The job came with an endless run of presentations, and my manager took every one of them apart.
One day I looked at yet another deck and finally saw what was missing. It wasn't telling the story. I binned it and built a new one around the story instead. When I delivered it, my manager had nothing to say, and the senior e-commerce manager sat there with her jaw open.
That was the lesson I'd come for, so I resigned and started writing full time. I never had a mentor, so I taught myself the rest: the covers, the formatting, the metadata, even the software I use to keep my series straight.
Everything I make now starts in the same place. Find the story first, and the rest follows.