can you get in to see another therapist? or the same therapist to discuss the concerns you have here? its possible that the mood disorder group will teach you some techniques that you can use to address your anxiety. if you go to it just the exposure alone would be addressing your social anxiety in a safe setting. that may be the reason they put you in a group. still doesnt make sense for not giving you skills first to deal with the anxiety before plunging you into a group setting. i would definately try to get another individual appointment to address your concerns.