Advice for PDD-NOS

[Missa132]

My son is 19 years old. He was diagnosed with PDD-NOS at a young age and we're just looking for advice now. He is very intelligent academically, and is now attending college, but his uncle has a very similar diagnosis and he is 53 and still lives with his mother and we just don't want this for him. We really want to help him be independent. One of the biggest issues is that he really struggles to think outside of the context of himself. When he is upset, he claims himself as the victim. When there is a conversation, he turns it back to himself (ex: if we're talking about the British royal family, he'll ask if we think he's kingly). To him, it seems like everything exists in relation to him.

He gets so upset when he sees his twin and older sister going to hang out with the people he considers friends and it just seems like it would be so much easier for him to have friends of his own if he could learn to empathize and relate to others better. I know social problems are directly related to his disorder, but is there a way to help him? He's taken classes on social skills and we try to remind him when it's relevant, but is there anything else we can do?