Hello I am going to group therapy right now for about 6 months I think. I was very scared and anxious too before I went for the first session but it was really ok. There are people like us you know, with their problems and worries. They are usually nervous too.
In my group people are very understanding and nice. We have two leading Ts male and female they are both fantastic and keep the group safe and comfortable place.
I am very glad I have the option to go and share experiences it gives me sense of belonging and support.
I am not emotional person and I do not cry or express myself emotionally but of course other people in the group do. I have anxiety response to emotions in people which reflects in a way that I smile. It is of course very awkward for others and me but I explained why it happens and that I really can´t control it even if I try very hard and people understand. So even I have this really bad reaction people are understanding.

You will be ok ((hugs)) ... good luck