I think I've had it my whole life. It's that persistent high-pitched noise - almost like the imperceptably high sound old TVs used to make when they were turned on - when nothing else is making sound. If there's not a lot going on around me I can hear it quite well. I pretty much tune it out and it doesn't affect my quality of life.

I sort of understand where the author is coming from. About ten years ago I ended up getting a ton of floaters in my eye and I struggled to accept them for a few months. In the end my brain tuned those out as well... at least most of the time.

Most of this comes down to acceptance of something you can't change. It sucks. Nothing you can do about it.