I hear the ringing all day, every day (because the curmudgeon in me detests the popular "24/7" term), for something like 50 years now. I can't sleep without a sound machine, usually emitting white noise, or a fan or A/C unit. There is no such thing as silence in my life. I've mostly come to terms with it, but there are days when, for no particular reason, the volume suddenly amps up in one ear or the other, but usually the right. There are days when, if I put an ear plug in the left, I can't hear a darn thing over the ringing.
Hearing aids don't help, and neither do those bogus dietary supplements. Far as I know, the ringing will only stop one way, and I don't look forward to that day.