Maybe. There are a lot of factors at play here. It’s helpful if you’re a good writer, but it’s not a deal breaker. After all, Snooki got published. It’s actually much more important to have a good editor. Writing is a great occupation for someone who’s homebound. If you’re writing to either encourage or warn others, using your struggles as an example, you may find a market.
The real problem is the industry itself. Publishing wasn’t easy before 2008. But the industry took a real hit that year. Lots of little companies got gobbled up or simply closed. Until then a talented writer, with luck and perseverance, had maybe a 15% chance of being published. Now? It’s down to a 3%, and your paycheck amounts to a pittance – not even 10% of sales. Not only that, but the author is responsible for all marketing. Publishers do market their products, but only for very famous people who really don’t need it. The unwashed get no assistance, and if their book doesn’t sell they’ll never get another contract. A literary agent might help, but if you don’t have one already the chances of getting one are pretty slim.
Which leads to self-publishing. This is probably the route I’m going to take. But if the goal is to make enough money to live off of, prepare to go on a diet. The biggest and most obvious choice is Amazon. Most self-published books there sell for $5 or under. Calculating your royalties for your book is tricky, as there are several options. For the purpose of example, say you’ll make $3.50 for every $5 book sold. Amazon keeps threatening to pay for the pages the buyer reads, rather than for the entire book, but I don’t know if that panned out or not.
If the author is responsible for all marketing no matter which route they take, it makes sense to self-publish. And yes, it’s theoretically possible to make money doing it. Some people make lots of money doing it. Most do not.
If you want to look into Amazon, start here. There are several other options out there – this is just the best known. Best of luck!