Reading this was kinda nuts for me as I felt like I was reading a direct reflection of my life struggles with my sleep disorders haha! It eventually got so bad that I fell asleep behind the wheel in my car and totaled my car, hitting a brick street light that collapsed into the street (thankfully not on top of my car cause I woulda died for sure). Started to self diagnose & consider myself narcoleptic at that point until later on after officially having a sleep study done, turns out the primary issue was sleep apnea which caused me to grind my teeth & stop breathing at night which would keep me in lighter stages of sleep & never get complete cycles. Eventually having terrible sleep quality due to the Apnea, starts to create other sleep disorder-like symptoms, turning into EDS, and eventually your body force-shutting down into narcoleptic symptoms. Unfortunately, I attempted the CPAP machine, but for me it made things even worse as I could NOT sleep with with some shit strapped to my face, along with the noise created, & worst of all the air injection drying out my airways & throat. The first thing that started to ever work for me was a tiny little tooth guard that the DENTIST suggested & molded for me, it goes over my front 2 teeth & prevents the rest of my teeth touching each-other at night whilst grinding (but still allows for the grinding motion), therefore reducing the sleep disruption caused by the grinding keeping you in lighter stages of sleep or completely waking. But it really didn't solve the root issue that was causing me to grind - your brain gets stressed out when receiving low oxygen and starts grinding and this mouth piece really helped change the game for me https://getquietlab.com/products/quietlab-plus-anti-snoring-mouthpiece
I also later found out I had parasites as well, due to their nocturnal nature, they cause sleep disruption and its almost guaranteed everyone has parasites of some sort as microscopic ones are in our water, food, if you have pets or animals you most likely have parasites, you can pick up hook worms just by walking outside barefoot, etc. So I would highly suggest a parasite detox on top of the mouth piece!