The oak tree is in the acorn (the story is inside you)
You can write about anything; a former job or a current one; a nemesis or archangel; the truth about being a trust fund baby, or growing up on the streets. The key is to find the heart of your subject–and this takes practice. Repeated practice. One yoga teacher I knew several years ago reminded students that “The oak tree is in the acorn.” I love this. For writers, this means that the story already exists. It’s our work to recognize it, cultivate it, nourish it, and give it time to grow into its own. It’s our job to shepherd it through the process, and, like parents raising a child, to respect its individuality, and encourage its uniqueness, and know, that that’s enough because it is everything.