I’m going to guess that you haven’t yet got noise reducing headphones, the kind that neutralise the sounds of a plane.
I learned about them here on these Flyertalk forums years ago and it’s the one single purchase that has made the most impact on how I feel when flying.
I’d advise borrowing a pair first if you can before making the investment. If that isn’t possible, consider how you feel when in a changing room or bathroom when the hand dryers are working - even if you don’t sense yourself uncomfortable when the noise is happening, do you get a sense of relief when it stops and a comparative silence is restored? If so, I definitely recommend them for you, and the greater the sense of relief, the stronger my recommendation.