That last little story was written in grade 8 (since you asked!). I was 13. I've come a long way, baby!
But the funny thing is, my process really hasn't. I hated editing then, and I hate it now. I like writing a piece, and calling it done. I went back through this story, and attached to it were several 'drafts.' Back then, the teacher graded us on not only on the final product, but on the whole process. I had three 'drafts,' each of which had to be 'edited' by a classmate.
I worked backwards.
I wrote what I considered the final story first. Then I went back and made changes that I knew people would not like, so that they would have to be 'edited' into the form that was in the final draft.
Yeah, I know. Kind of arrogant.
The 'outline' was done the same way - wrote the story, then made up an outline that went along with it.
These days, at least, I'm not totally convinced that my stories don't need editing. In fact, I'm quite certain that they need an awful lot. But I still like to write in one big chunk. I don't like to write detailed outlines. And I'm not a fan of editing. If I could just turn my first draft over to someone else to finish, I'd be a happy camper.
But I'm doing it. I'm learning to outline (sort of), and I'm editing as best I can. I'm learning, and working at it, and if nothing else, I've improved my storytelling skills since I was 13!