You seem to have a complete distrust of everyone and everything, which seems to fuel your anti-social behavior.
When you say your 'psyc.,' do you mean psychologist or psychiatrist? Seems like you're only taking pain meds and alcohol, which will not treat your symptoms of a social disorder.
Have you been to a psychiatrist? If they dx you with a social disorder, then they can give you meds which will stabilize the chemicals in your brain in charge of mood and hyper-vigilance.
This in conjunction with therapy from a psychologist or therapist is really the mainstay route for many with social/anxiety/panic disorders.
My biggest concern is that you seem to say 'no' a lot. From what I read, you have a preconceived notion of how everyone thinks and how things work and you're not willing to concede change. Until you decide that you must trust in professionals that study and practice years in their fields, you really won't get any better.
I had a slight social disorder where I didn't like to be around people. Always sat in a corner seat so I could get out of there before anyone else. Segregated myself from the world. But when I was treated for panic disorder, I have no problems talking to complete strangers now. Just making idol chit-chat. They're just people, like you. People like respect and to be treated with dignity and humanity. Most people are too busy on their cell phones, consumed with their own lives to practice this. You can't expect people to be friendly with you, but you can choose to be friendly with them. If they don't respond, so be it. But you'd be surprised how you can get a chuckle or a smile when you show a stranger complete respect and understanding from out of the blue.
Let us know what path you choose. I'm hoping you go see a psychiatrist and at least allow them to treat you before you dismiss them.