Mentium... I am going through the exact same thing. My social anxiety is the reason I'm an alcoholic in the first place, when I discovered at 16 that alcohol could make me a confident and anxiety-free person.
Mine is so bad most of the time I choose not to leave my house and I avoid any and all social situations. I could do these things drunk. Sober... not so much. So I don't have any advice. I'm in the same nightmarish boat.