my first actual story was in high school. My composition teacher gave me an assignment independently from other students. It was to continue a story that i had been toying around with.
It was a story of a wolf who was injured during a hunt and left for dead by his pack during an especially lean winter. He was found by a strange human who nursed him back to health, and they eventually became friends.
That teacher is actually the reason i decided i wanted to be an author. Everyone else said my writing was a waste of time, but she encouraged it. she saw potential. but then, life got in the way, yada yada.