Got it a few years ago. In my 30s as well. God how it used to bother me, i’d have the whitest noises to the point where it depressed how loud it all was, white noise included.

Went to the doctor, did all those rounds. Once I saw the endemic existence of CBT and other psychotherapies as treatment it dawned on me that I might have to reconsider my relationship with this.

In reality I just got used to it and live with it. I have a tiny white noise sound that is always on my headphones while i work that is just enough and that covers me most of the day, but honestly even if I sit in an electric car that is fully stopped and it’s as loud as it’s gonna be, I notice it, absolutely, but it doesn’t really cause distress anymore.