Mate, I'm really sorry about your situation. I'm sure your family and friends do want you, but you have to make an effort. If they are angry about your drug use, then you need to address it. I've been there, and you think "fuck it, no-one cares anyway, I might as well continue doing what I'm doing". That's the worst thing to do. Do you actually call your mates/family, or do you sit around waiting for the phone to ring? You need to be proactive, go out there and work on your relationships. All of this is just my opinion, of course.
I think this would be better suited to TDS tbh.