Once we're on our way, it doesn't hurt to study our craft a bit.
Telling a story is an art, and every art has tricks to make it better. I took a painting class once and learned all sorts of cool stuff about how to mix paint to create certain colors, depths and light. And shadows. My teacher taught us the most interesting things about how to create a life-like shadow.
So it is with our writing.
There are tricks, rules, that make it better. Sometimes we know these things instinctively. Sometimes we don't.
It doesn't hurt to study the craft of writing and use all the tools available to forge the most awesome story in the world!
When did you first realize you needed to learn more about writing? What's your favorite technique?