Earlier quoted context omitted.
Writing is a solid way to make money in specific genres, however, especially if one is self-published. A business-saavy writer can make a good amount of money writing romance (which makes more money than most other genres combined) or self-help.
A former manager of mine had a whole side gig writing direct-to-kindle romance and erotica for quite a while. Not bad money in it either.
I'd be happy selling my one book fairly well. Though I keep hearing that it's series and series of series that do the best.