Use synchronized hand gestures/movements and practice using your hands while speaking

Use synchronized hand gestures/movements and practice using your hands while speaking This is the only thing that's consistently working for me. And it has a clear neurological basis (not a placebo). Try to pick a word you stutter on when speaking to Siri or Alexa, and use a synchronized hand movement to say that word. Perhaps you'll need to exaggerate the movement a bit at first. I guarantee that you'll notice a huge difference. Practice conversating with chatgpt using your synchronized hand movements. The fear will begin dissolving, and you'll be better able to mentally control it. Please do try it.