I devoured Roman/Greek myths in grade school. (Of course they were the only myths we learned in class.) Later, I discovered Norse myths and Celtic myths and Native American myths. I tried Egyptian myths, too, but they just confused me.
They were a balm when I couldn’t read my usual mysteries and children’s horror.
I turned to them when I needed to create myths for my own world. I love the loki stories, the coyote stories. And, also, the turtle and elephant stories.
That’s not to say they feature prominently in my own world. But it’s a jumping off point, you know?