My stutter can be pretty severe at times. But on the point of your uncle being a DJ, i can KIND of relate. I wanted to be a professional wrestler so bad that I decided I'm going to do it regardless of my stutter. In a setting such as telling the pharmacist my name or ordering food, I struggle. But when I get a live microphone in front of a big crowd, it leaves me for some reason. I've had slip ups, but I'm usually thinking of replacement words as I'm talking just in case.