You don’t need anybody’s permission to write. You don’t have to be smarter than anybody else on the school bus. You don’t even have to be on the school bus.
You don’t need anybody’s permission to draw pictures or paint paintings. Technical proficiency is not what we are after anyway. If I wanted to see lifelike, I’d look at a photograph. Don’t feel bad if you are the kind of human with the shaky hands.
I’ve never been to college. I don’t have any education past high school, but I write. I’m that weirdo that thinks that anybody can make art and everybody should make art. It doesn’t matter who you are, your life can be improved by making some kind of art. I’ve got no formal training, and I’m pretty much the only guy I know working construction who reads books at all, but—I write.