@hayhay1213 Unfortunately my hyperacusis has never solved, and most likely never will, despite the best efforts from my doctors and myself (self-training under the special hearing laboratory guidance). I would say it became about 20% better after the three years (!), meaning that I'm hearing normally for about 20% of the time. Not only the volume but also the character of the sound (from roaring to hissing, etc.) may change for me unexpectedly at any time. And all tests show nothing wrong with my eustachian tube functioning.
I hope your stapedectomy issues will eventually resolve. It may also depend on the age you had your procedure, because the brain has to adjust to new sound, and the longer you previously had the otosclerosis (I had mine for a few decades), the more problematic this adjustment would be. Wishing you the best.