I'm a fiction writer. I've been interested in fiction basically since I could hold a pencil. Other kids had imaginary friends; I had story characters. I used to come up with backstories for stuffed animals and virtual pets like Neopets. (In fact, some of my Neopets characters have been around since 2007. No shame!)
I have a few guidelines that I use when I write. None of these are rules, per se, just suggestions that you might find useful. They help with motivation, technique, and style, but content is up to you!