First, implants are not natural hearing. I think they do very well for speech, and there’s a whole thread on HearingTracker of CI people who play music. There are also researchers - you can look on th HLAA website and find reports on just this topic from the convention in June of this year. My take is that 1. Your hearing will change and2. It’s not hopeless. But then , isn’t that better than what you’re facing now?
Losing your hearing is a huge loss, and most people grieve it deeply. So maybe be compassionate with yourself. It isn’t fun, your heart will break. But you will be able to talk to your loved ones and be ok at work and deal with the outside world. Not perfect, but enough
On tinnitus, I never had nightmare bouts of it, but once my CIs were activated, it just kind of faded away. I theorized that the CIs took up all the bandwidth on my auditory nerve . Makes my ENT roll his eyes, but neither of us is complaining
One more thing. My story took years. Summing it up like I did makes it sound smooth and easy, but it actually carried on for 20 odd years. Keep on breathing and putting one foot in front of the other. The road gets better