The ones we have seen on television have been a bunch of weird people sitting around telling depressing stories and then freaking out at each other, with a facilitator attempting to keep some order. Well, perhaps that is not exactly what you need. The aims of a support group should be focused on the first two. No matter how well things seem to be going, they could always be better. And even if not better, at least easier.
Human beings are by nature gregarious.
We were never meant to be isolated from each other. In most societies people have developed habits of being alone because that seemed like the easiest way to cope with the hurt and distress around them. But the truth is that we all need some others. And it is in these others that we find the courage and strength to deal with the pressures of our daily lives. None of us, on our own, has all the necessary strength.