Nothing matters/bothers me. help is this like a sociopath?

Not really: "nothing matters" sounds more like depression than sociopathy. A sociopath has aims and goals — and doesn't let other people's pain or discomfort get in his way. Sociopaths also rarely seek help, so the fact that you did argues against sociopathy. Actually, it sounds like your symptoms do bother you. A mental health evaluation, or just seeing your primary care doctor, might help.

Depression: This sounds more like depression, as put. Get a full psychiatric evaluation to find out what troubles you. Do not diagnose yourself.