Hi, I'm sorry you are going through this now. What you're describing sounds like a really painful place to be in.

I can't know how it feels to be in your world right now, but the feelings you're describing remind me of something very familiar.
I felt similar at work to what you seem to be describing and now I'm on sick leave, not sure for how long.
With friends - it's hard. It feels sometimes that there is no way of making friends, actually most of the times. Still, it happens, or at least used to.
Feeling stuck sucks...here I have some long term expertis, haha. I could tell you, this somehow always changes, which I remember it used to be true for myself, but I won't tell you this now because I feel stuck as well for some time too.
So I just wrote all this, more like writing down my reactions based on your post. Not really helpful probably. I'm not so well and usually when I feel like this I don't post because I feel useless and think that whatever I do (or write in this case) is crap and not good enough.

I share your feelings about posts getting unanswered, I don't know about others but I sometimes don't post even when I'd like to because of the above mentioned reasons, that I think I need to be in a mental state where I could be helpful and be able to inspire or something. But maybe it's not a requirement after all, I don't know.