I'm sorry to hear that. I actually know another stutterer from my NSA group who openly stutters and works in a call center. Some days aren't super bad, other days are really brutal. After the brutal days, I think she takes pride in herself for sticking with it and for coming in again the next day. Horrible speaking experiences really are totally miserable and I know for myself I usually don't like hearing anything other than that as I feel it can be dismissive. But after I calm down I am able to remind myself, "Hey, that was one of the worst experiences I've ever had...and i'm still ok." I didn't kill me. It isn't making me crawl under a rock never to come out again. These things happen and it is ok that they happen. Sometimes I can't control them and sometimes I can't control how horrible they feel but I can choose to get back up the next day (or whenever you choose) and carry on. We focus so much on these bad moments because they're so powerful but we can also choose to think about the good moments we have as well where despite having a stutter we could still enjoy ourselves.