@MJv Have you ever considered cannabis or cannabis related products? If you can get a CBD oil/balm/spray this can help you sleep. They are very low in THC which is the psychoactive component, so you don't get "high" and there is no associated anxiety/paranoia. CBD products are like a super potent version of chamomile or valerian root. Not sure where you're located but this is potentially an avenue worth looking into.
Regular cannabis that is smoked or vaped can help make you drowsy and sleep soundly,
but you have to be in the right state of mind, otherwise you'll probably feel anxious and paranoid about your tinnitus.