I was unable to even say my own name growing up, which led to isolation, bullying, the whole works. Over time though I've learned tricks to cope with the stutter, in particular speaking with an english accent. Confidence is the other thing that seems to help--i worked one job with a terrible boss and could barely talk, but then I met my future wife and she helped me massively. The stutter isn't "cured", as it'll occasionally return, and I still speak with an odd timbre, but it's certainly a hundred times better than it was. I MCed a wedding a few years back which was very liberating. Just sharing, as I certainly did have a stutter and now most people wouldn't know.