Rolling Stone has an interview with Stephen King that goes into various subjects. I think the last line of his answer to this question is undoubtedly a truism.
How would your life have gone if you hadn’t become a writer?
I would have been a perfectly adequate high school English teacher, possibly a college English teacher. I probably would have died of alcoholism around age 50. And I’m not sure my marriage would have lasted. I think people are extremely hard to live with when they have a talent they aren’t able to use.