David,
I would say that not all people need a support group, but I do believe that all people need support.
In my opinion, just being able to verbalize my thoughts and feelings out loud to another person (even if just one person) will help the mechanism in my brain that figures out problems "all by myself" to start up.
And, having those other perspectives is so valuable to me, because I am one who tends to shame myself, and believe that what I'm thinking or feeling is crazy and unhealthy. It feels so good for people to tell me that I'm growing, changing for the better, and that my thoughts and/or feelings are not "bad"!!
PS - (Sugah--I love that you are from Punxatawney..."Groundhog Day" is one of my all-time favorite movies!!)
(sorry that this is not an exact quote):
"If you strike me down, I wil become more powerful than you could possibly imagine."
Let go of that which you most fear losing