I may have been misunderstood. Have faith and confidence ( even if the past shows otherwise or you may believe it's a lie), that you can speak normally. And start letting go slowly, speaking at a slow pace. Then as u feel more steady and confident, let go of the clutch( as would in a manual car or bike) and you be going steady. The thought is important cause it gives you the boost to talk and believe that change can happen. It worked for me. So I am just giving my bit.