I'm sorry it's so bad for you. I kind of had the same feelings when I first started. I thought it was rather stupid and useless at first, and it didn't help that the group leader did something completely idiotic the first day. But now I've been at it almost a year (wow! I can't believe that!), and I've found that it has helped me. I'm not cured. Not even close. But I have been able to use some of the skills, particularly from distress tolerance and interpersonal effectiveness. I would say, give it time. I've been doing it for a year and am still learning.

Do they force you to participate in group? I hate talking in groups like that, and usually they don't make me say anything unless I want to. Maybe you could talk to the leader and explain that speaking in group is detrimental to you.