Creative Nonfiction

Wikipedia says creative nonfiction is "a genre of writing that uses literary styles and techniques to create factually accurate narratives." en.m.wikipedia.org

It can be used to expand or stretch your writing muscle.

For example, by taking the time to describe the coffee shop you are working at in detail, you will be creating a fully fleshed-out scene.

By studying a unique character in that coffee shop (hopefully without them knowing) you can develop an interesting side character.

By practicing in this way, you will pull together important elements of your overall story. That is the nature of creative nonfiction.