I used to have anxiety attacks when I was in school, I had stage fright from my child hood, I avoided crowd, never participated in extra curricular activities unless it was forced or mandatory and even then I used to find reasons to skip it. I dreaded that I would stand out and become a laughing stock. But in my 8th grade one of my teachers pushed me to present a lot of projects regularly. At first I tried to find way out of them but slowly I got around the fear bit by bit and Now thankfully I am in a better position when it comes to presentation, talks and general speaking skills. I guess one can confront fear bit by bit and chew through the pain/trauma and build resistance. That's all just wanted to share my experience hope it helps.