I write my stories because i'm passionate about them, but I do writing is my job and much of my writing are stories I create for specific themes for writing competitions and such. For example, I wrote a story for a competition that's theme was to write a story that never used the letter 'r' once and another story for a competition with the theme of 'motion,' Both stories were about things i'm passionate about, but they were designed to fit within the competitions rules/themes.
You can find the story without r's here
https://onthepremises.com/minis/mini_63/
the one with the theme motion isn't available for free since it's part of an anthology, but I'm still proud of it.