Hi everybody I have a problem! I have a friend he's diabetes and he has lots of problems with the people around him . He’s not sociable and I’m worry about his future! I love him too much and I don’t want to see him suffering the rest of his life! How can I help him (even if he doesn’t care about anything and anyone)? I feel like I’m going to die because of him because I love him like friend more than this he’s my best friend!

All you can do is talk with him and be supportive. Let him know you are there for him if he needs someone to talk to or just spend time with.
Some people are content with not being sociable.
You most likely should work on your own emotions too because it sounds like you are co dependent on his happiness and too emotionally caught up in his problems.

Yep you're right I have just to keep trying to talk with him but the problem as I said is that he doesn't care so it means that I'm just wasting time but no problem I'll do it for the rest of my life if it'll help him and perhaps someday he'll thank me , I hope so!
Thanks for answering my question.