I could have written your post when I was first sober. In the end the way I got through the door of a meeting was from contacting AA and chatting to someone first. Somehow it seemed that little bit easier (still not easy though ) to walk in after talking to someone.
I still feel a little nervous when I walk into a new meeting if I'm visiting someplace, but I've never been to an unfriendly meeting yet. Why not try calling the hotline number to see if some of the fear can be dispelled that way?
Wishing you all the best for your sobriety and recovery. BB