on Writing Forward:
A common piece of writing advice is write what you know.
When I first heard this advice, I thought it was odd. I don’t remember where I first heard it, but I remember thinking that as far as writing tips went, it was absurd.
What about writing from your imagination or your feelings? How do genres like science fiction and fantasy fit into the idea that you should only write what you know?
It all seemed rather limiting. Was I supposed to write about American suburbia? That’s what I knew, and it was the last thing I wanted to write about.
One of the reasons memoir doesn’t appeal to me as a writer is because I don’t want to write what I know. I don’t want to relive my life. I want to use writing to live outside of my life, to explore what I don’t know.
I decided to disregard the advice and write whatever I wanted.
Chris The Story Reading Ape's Blog 
This is true. I use a lot of my background with my debut novel. I was a teacher overseas(I insert UAE, London locations) and met some interesting people(Characters loosely based on novel characters)! My husband and I owned a cupcakerie, so I use our experience of running a small cupcakerie, including inserting my recipes in my debut novel, “The Bayou Heist.” At one point, one of the main characters is interested in cryptocurrency and then she admits to herself, “I don’t know anything about it, so I can’t hide monies that way,” and she decided to focus on what she knows as this works best.
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