I haven't read whole this thread...
I am also a deaf wannabe, I'm not interested in pretending deafness, I need to be completely deaf.
I hate noises people make, I am very aggressive when I hear sounds people make while eating, I hate several voices, breathing, coughing etc....
I have this problem since childhood, cca from the 6-7 years of age, I couldn't sleep, while I heard my sister breathing /we shared one room/, so I used to sleep covering my ears with a pillow. I suppose, that it is some neurological problem or what, that some noises stimulate the part of brain, which si responsible for anger management.
I don't feel comfortable and what is worse, I make people in my nearness also suffer.
So I decided, it would be better, to become deaf, but I have no idea, how to achieve that

It will be great, when I won't hear nothing, but silence.
I will miss music, though, but it's worth it.