I actually was a person who developed a even worse stutter, first it was repetition and I was pretty somewhat fluent. Now it’s a hard block that I was told how can I be so smart in one thing but so dumb in the other, I guess a stutter makes me slow. I subscribed to a guy named stuttering in the first world, I don’t know if he keeps his channel up anymore. He was a medical technician of some sort and had to lose his job after doing an operation due to how severe/limiting his stutter was at that point. He then spoke on how when he addressed his stutter through many trials, his life isn’t that bad. This would be called a relapse when a stutter can be small then switch on a dime and completely ruin someone’s career or make one inefficient, I seen this with a paramedic. It’s a sad reality