I feel lonely sometimes, and it is mainly because of hobbies rather than my disorder. I do have ADHD (and supposedly, I have Aspergers Syndrome, but it hasn't be officially diagnosed yet), but that hasn't stopped me from making friends in the past. Although...to be fair, I never really felt like I fit in when I was in High School, and that was mainly because of my hobbies. What it is doesn't matter, but let's just say it was....Mmm, unusual? No, it isn't an unusual hobby. I'll put it this way, I was one of the few people in my school who had this hobby/interest. Normally, people who had this hobby would keep it to themselves, but I wasn't afraid to share it with my classmates, and I actually became popular for it. But unfortunately, it had some consequences linked to it. Not everybody liked me, a lot of people got tired of me always talking about my hobby, and a few people realized how retarded I was at the time and took the opporotunity to "have some fun with me".
It also meant I would never get a girl friend, or for that matter, barely even have girls as friends. I know, "it is not a big deal, not everybody finds their first love in High School". Trust me, I have heard that sh-peel dozens of times already, it's getting kind of old. And don't tell me you wouldn't feel the pressure to get one if everybody else who you were friends with that you sat with at your lunch table either currently has a girl friend or had a girl friend in the past.
But on the note of making friends, you shouldn't let things like depression get in the way. Most people are not as cold as you think they are. Just strike up a conversation with somebody about a neutral topic (food, weather, music, school, etc.), find a common ground, get a feel for how the person responds to you, and go from there. Try to not bore them to death and go on a monologue (that is something I would do...if my post doesn't give that away), engage in the other person and take interest in them.