How do you go from “Running a game of D&D sounds fun” to “I have some idea of what to do”?

You could do what I did: play enough RPGs at an early enough age that you don’t remember  feeling daunted by or awkward about the transition from playing to running games. I figured running games was just what you were supposed to do. I paid attention to how my siblings ran games, and I tried to replicate that.

That obviously won’t work for most people. They could try the adult version, playing lots of games run by other people until they have some idea of what to do themselves, but what if they don’t have a good play group? What if they want more tools?

What other entry points can we (the RPG community) offer? What resources and pitfalls should we and new storytellers be aware of?

When I think about resources and pitfalls here, I think of ingredients and recipes. Roleplaying game materials are strong on ingredients; RPG books often include lots of “what” and “who” and even “where” to use in your stories. But these materials are often weak on recipes, and they certainly don’t teach you how to cook; they don’t offer much “why” or even “how”.

Without understanding the “why” and “how,” what is a would-be storyteller to do? How can we help new storytellers learn the why’s and how’s of the art of storytelling?