I had the same issue when starting a new job. We had to talk into walkie talkies to communicate with each other. For about six months It mentally drained me, coming home feeling so tired with very bad stress headaches. But you know what.....I forced myself and stuck at it and one day down the line I stopped being so tired, my headaches stopped and I started stammering/caring less. Up until then I would have avoided talking when I was able to but I couldn’t avoid it, I really believe now that if we force ourselves, feel the fear and do it anyway, it will be our way out of this.