Writing has a formula and structure to it. It doesn’t require a mystical talent that only a few have.
Anyone can be a writer if they want to. Sure, not everyone will decide to dedicate the hours Stephen King has done but you can. It’s simply a choice.
It is worth noting: No one knew who Stephen King was when he was born. He learned to become a writer, he wasn’t born one.
If you are having any self-doubts about starting, you should know:
You are good enough.
You are qualified.
You do belong.
Make your art. And when it is done start the next project.
PS Make friends with your self-doubt because whether you are shipping your work for the first time or the thousandth, you are still never going to feel good enough to do work that matters.