The main thing is to relax, not try To force anything. Breathing is the key to it all. If i start stuttering on a block, i stop talking. (Forcing it will never work and it just gets me more worked up) i take a breath in and on the exhale i try again. When you're breathing out, your vocal cords and everything else are relaxed, so it's easier to talk. I have a hard time saying my birth name because of the B. So i have everyone call me something else. There’s no point in fighting a fight I'm not going to win, so I change the rules of the fight. I can't say my birth year, seventy-three, so i just say seven three. Stuff like that. It gets me the occasional weird glance, but my fluency is better and that's all i care about.