Sorry to hear you have been struggling. I feel your pain, I hear you.
I recently saw a neurologist who's sent me for an MRI of my head and left ear. I have tinnitus everyday mostly all day, right up until last night trying to quiet myself to sleep and even now. Apr 1st/23 were my MRIs. I have some numbness in my face, my cheek, ear and sometimes my tongue – apparently this indicates nerve 5, 7 & 8 inside my head. One of those nerves indicates the tinnitus. Follow up appt. coming up shortly, I'll let you know how that goes.
I find great comfort in hearing other folks' stories. I'm not the only one and it's good to hear what others have tried. I hope you find more comfort and joy in your life. Peace.