Begin with yourself. Look at yourself, how you are, what you dream of, what you want. Start there, and start small.
Begin with what you love. Read your romance novels, your horror novels, your contemporary fiction, your classics. Listen to your classical music, your pop, hip hop, rock. Play your sports, run your races, climb your walls.
Write those stories that you wish to write.
It doesn’t have to be big, but at least start small in a place where you feel safe. Then keep going. Keep reaching for the next handhold, even if it seems a bit out of reach. You don’t know if you’ll grab it if you don’t try.