Hey, I completely relate to this. I'm 35 yo and I still feel like this when called upon to speak at work. Here are some strategies that've helped me: * Fake it till you make it! Faking confidence all the time is exhausting, so I only do this before meetings where I expect to be called upon. I basically hype myself up, and tell myself that none of this is a big deal in the grand scheme of things... I also picture myself speaking slowly and calmly. * It's OK to stutter, don't overthink it! This took me over 20 years to understand (don't be like me!). In the past I'd completely fall apart after I blocked on a word. Nowadays, if I block/stutter on a word, I simply skip the word, or skip the first syllable of that word. 95% of your audience won't even notice this omission. My mantra has been 'move on ! move on! move on!'..... * If things get bad, speak in a monotone, like those 80s robot voice. I still do this to get words out when having a particularly bad stuttering day. * Practice these tricks/techniques, so you won't get caught off-guard when put on a spot. * Meditating is helpful. You can visualize implementing above techniques, and reinforce your subconscious that you're a fluent speaker. I used to have moderate/severe stutter growing up, but now it's improved to mild/moderate. These strategies are part of reason why my fluency has improved over time. Hope this helps!