The answer is no. Unless you write a tiny version of a million-dollar idea or are into the Erotica genre, it isn’t worth publishing short stories outside of anthologies. You will not make your money back. I have personal experience from this and both of my stories Hazardous and Virthrandel are very successful. But they aren’t Rowling or Patterson successful and that’s the problem. I have made the money back from the novels I have published but otherwise, I would be throwing money at a hobby. My suggestion is to look into publishing companies that host annual anthologies in various genres and submit your short stories for those. That or compile a collection of similar shorts together and publish them in your own anthology. Either way, do not publish them separately. It is not worth it.