While I was reading your post, I put in my mind that I want to comment that your thoughts are organized and you can write long posts, but later you said you tried very hard and it took you a long time. I usually don't read long posts, and I don't write them. I lose track. It takes me a long time to read and write them (it's been more than 45 minutes writing this. I write this here because I keep modifying after I write the post). Many disorders have similar symptoms, but I think what you described indicates ADHD.

I understand what you are saying about anger and frustration. Luckily for me I work in academic research, and I don't have to deal with people, but still feel frustrated when I try to, and of course my chances are very limited because of that. Socializing in general, but in conferences in specific to make connections, is a nightmare for me. I have a mixed of (social) anxiety, blank and distracted mind (ADHD), and lack of appropriate reactions to social cues (probably ASD).

Socializing is an important element in life, and people who don't know how to socialize fall short relative to more sociable people, even if they are extraordinary intelligent. I personally focus on topics and discussion more that on people. I like everything to be formal with people, that's why I was told several times I look serious and people tend to avoid me. But it doesn't work that way. You need to build a connection with people because people tend to help those who connect with them more than others, even in formal settings. For example, a secretary in a department will help a student who is sociable more than a student who isn't, although both are students. Of course she/he will help them both, but not the same help. People go the extra mile with those they feel comfortable with. Unfortunately, I cannot do that. The small talks isn't my thing, and I definitely don't make people feel comfortable because I'm socially awkward. Do you feel the same challenge, or your situation is different? I mean, why do you think people treat you the way they do?