Loneliness Support Group
Loneliness is an emotional state in which a person experiences a powerful feeling of emptiness and isolation. Loneliness is more than the feeling of wanting company or wanting to do something with another person. Loneliness is a feeling of being cut off, disconnected and alienated from other people. The lonely person may find it difficult or even impossible to have any...

Have read and reread your post and I identify in several ways. For years I thought I was bipolar; my diagnosis now is somethinglike it.
My nextdoor neighbor is completely sightless. An aquaintless from our rails-to-trails path . . . who sees very little I always enjoy saying hello to.
Would wearing dark sunglasses be a way to get away from that rudeness impression you spoke of? -- I know, that would slow people down in initial contacting, but on the other hand I'm very sensitive to any hint of rudeness.
Rudeness is the worst, oy vey.
And by the way, I've become convinced that some of what goes under the name "eye contact" is really head movement. And hand gesturing; y'know how Italians are always said to talk with their hands. --Thinking about expressiveness here.
be glad for your family's support; many people dont have that.
i'm half deaf, with tinnitius, with me stuck some times having to ask cashiers to repeat what they said.
back in early 1980s, i knew some local lowlifes, though we went our seperate ways, thankfully....but i'm all alone now, for good or bad.