I've faced same issue all my life. We have social anxiety caused by the fear of stuttering in front of others. But last few years I've learnt several strategies to overcome this, and have been consistently implementing them. Compared to few years back, I've come a long way, and now I'm comfortable in most social situations. I love to talk about my strategies if someone is willing to listen. I don't really want to type it all out here (it can frankly fill pages upon pages, and i've commented bits and pieces on many other posts if you're interested). DM me if you want to talk about it.