Insomnia is awful; and I can appreciate your circumstances as I share it. I’m 10 months in from a cold turkey withdrawal from many years ethical use of benzodiazepines, i.e. prescribed. That’s 10 months only sleeping from 2 to 5 hours (if lucky), often stitched together in 3 sessions. I have seen neurologist, psychiatrist and psychologist; all confirm sleep problem - no solution,
only discovering severe anxiety, also affecting my gut.

Rather than reinstate benzos, last month I bought a bottle of vodka and tequila and began taking a shot or sipping, i.e. self medicating ~1.5 hours before bed. It has helped to calm the racing thoughts and serious IBS (irritable bowel syndrome) and subsequently increased sleep so I am more functional now.

As for dealing with anxiety, there are a number of videos on YouTube by professionals and amateurs sharing insights. While drinking alcohol and engaging videos are not panaceas they have been pragmatic in getting some relief from the debilitating effects of sleep deprivation; also cheaper than doctors visits of no consequence. I feel it’s just a matter of some more endurance time until my baseline sleep gets much better. BTW, I otherwise don’t drink.