I was diagnosed with high functioning autism when I was four years old. I am now seventeen. I do have problems relating to my peers, but I have even more problems relating to other autistic people. I get along best with people in their 20s who are NT, but quirky.
When I get along well with people I become a totally different person. It seems like I suddenly gain social skills and I become extroverted. I actually feel energized by interacting with those people.
I think my problems with social skills have more to do with lack of practice, lack of energy and social anxiety than being autistic or "missing social cues." When I make social mistakes I can usually tell that I'm making a mistake. A lot of my social mistakes seem to be more like bad habits or impulse control problems.
One problem I have is talking too much about my interests. I can usually tell if people are getting bored, but I usually have no energy to talk abot anything else. I often leave the conversation to avoid boring them. I know this is another mistake. I just don't have the energy to talk about stuff I'm not interested in and worrying about boring the other person. This behavior probably makes me look like I'm autistic or self centered. If I had more energy I wouldn't be doing this crap.
I have been to "social skills classes". None of them are very helpful. They usually talk about social rules that are obvious to me. I also feel like I don't belong with the other people in the group.
I am constantly worried about people think I am disabled or weird. I often put a lot of effort into looking normal. I think this backfires because this makes me more anxious. I might even be "normal" after all.
I'm really hoping my diagnosis is incorrect. If it is incorrect I will probably be able to live a normal functional life. I suspect I have some mental health issues caused by the diagnosis.