That feels me more desperate.
There is no need to be your own doctor to think that benzo withdrawal has done the permanent damage as claimed in your case. You have H which can fade or disappear as your H is still relatively young. Even if it stays, people have used meds to help cure it like
@Danny Boy did. If you are talking about 'S', then you need to seriously research or talk to Danny Boy about using the meds to try heal it. Also, people have been able to function even with on-going H and you don't need to think of doing the unthinkable to harm yourself and hurt your loved ones in the process. Currently, your body is rejecting your reality and so you are in a high state of stress.
You should search Dr. Charlie's posts if you can still find them. He was here actively a few years back. He said he has lived with H for years and has managed to adjusted to it. So I exhort you to think more positively about your case. Instead of focusing on the bad cases, think instead of how others have done okay in life even with severe H, and 'S' simply isn't going to solve anything. Try to push it off your mind. The dark thought can come and go during extreme suffering and hopefully you will slowly gather the strength to say a affirmative 'NO' to it as I and many others had to do.
Here is Dr. Charlie's introductory post in which he opens the post by saying:
"I am a retired ENT physician and surgeon who also suffered from tinnitus for years. My tinnitus began in 1997, before I retired from my practice. Later on, I also developed hyperacusis. Whenever I focus on it, I still hear the noise of tinnitus, but I no longer suffer from it. My hyperacusis remains problematic, but I have learned how to deal with noisy situations to avoid most of the pain."
https://www.tinnitustalk.com/threads/dr-charlie-—-ent-specialist-with-tinnitus.6935/
I also mention the story of Melody Gardot in my success story as one of my guiding lights. She is an excellent Jazz singer who has both T & H, and her H was bad enough that she has to wear earplugs often in most places she went. Not sure if her initial H was so bad that she had gone through time where she couldn't go out like you or like me initially. This is because she had to be hospitalized for a year after being struck by a SUV which did massive damage to her body causing horrible pain all over. This is besides the severe T & H she already suffered. She had to learn playing guitar while lying down in the hospital as she couldn't walk for a long time. Despite these tough challenges of immobility, severe T & H and pain, she never gave up and she eventually overcame and recovered well enough to embark on her singing career. She is one of my guiding lights besides Zoe Cartwright who has total unmaskable T due to total deafness from young 15. I told myself if these ladies could overcome their challenges and with the proper positive attitude could move on with life AFTER SOME TIME, why shouldn't I not do the same to wait out more and to embark on positivity like them. When I changed my approach after the initial fear and trauma, after the confinement, depression and sleeplessness, my condition slowly improved and the H slowly healed. Don't push yourself and don't compare with others. There is no need to jump to conclusion that your future will be as bad as you think. This is called 'Catastrophic Thinking', a cognitive distortion in CBT. When you take a step back and don't pay much attention to T & H, and slowly go back to living, it will be a matter of time that your situation will improve. But do allow your body enough time to heal.
Take good care. God bless.