I have mild T (please don't judge!) so I don't know if this will help at all, but I'm so happy right now. My T has been barely noticeable for the past two weeks, and I've even woken up in (almost) silence! My trick was that I stopped caring about it - literally. I stopped looking for it because I knew it was pointless. Whenever I think of T I just do something else and it usually works well. When I have to sleep at night I just think: "This is just in my head and I'll be fine" and I usually manage to relax. My T normally gets quit again so I can fall asleep. I also try to convince myself that the sound comes from an actual device in the room... Then after a few weeks things changed drastically! I barely notice it during the day at all now, and I can listen to music at moderate volume for hours and it doesn't get worse... Which is weird though. I tried hypnosis videos, and they are really helpful also. They make me relax in a completely different way. But I still hope to wake up and discover that my T has faded completely. I think that worrying about it constantly is a subconscious 'flight-for-fight response' and changing that made a huge difference for me. I really hope my story helps, but I doubt it since my T always has been mild. I will update if I notice any more changes.