I get the sense that tinnitus is so different for so many people there will never be a single solution. I think it can only be stopped at its source in the hearing centers of the brain itself, but good luck getting that accomplished. I can only describe mine as the sound of a dump truck full of chandeliers going by the house. There are low-pitched rumbles, high-pitched wails and everything else in between if I really…
Actually, I've read that the best way to cope with tinnitus is to... just not worry so much about it. I suppose it's possible to catastrophize if you have it, but if you go about your day and don't mind it it won't bother you nearly as much.
I actually have fairly soft tinnitus myself, but I only notice it every so often.