I suspect that when you say “non-commercial”, you’re talking about literary fiction. If so, yes there are a lot of tragedies within the field. David Foster Wall

I suspect that when you say “non-commercial”, you’re talking about literary fiction. If so, yes there are a lot of tragedies within the field. David Foster Wallace is certainly one, as were Fitzgerald and Kerouac. J.D. Salinger had some interesting personal habits I don’t agree with, but he largely became a recluse to hide from fame. But outside of those examples, you will find a large number of literary fiction writers who actually lived relatively normal lives. William Carlos William was a doctor as well as a writer - he served as Head of Pediatrics at a hospital in New Jersey for almost forty years until he died. Margaret Atwood turns 85 in a couple of weeks - her long term partner recently died but she’s still somewhat active on Twitter sharing information about the situation in Ukraine. And I could keep going. Writers are human and so express the full range of humanity, from dying young via suicide or alcoholism, to having successful medical practices and family lives.