Meetings used to stress me out too in a similar way to what you’re describing when I was younger (I’m 38, so it’s not like I’m old lol). I’d be worried that I’d embarrass myself or people wouldn’t take me seriously, so I’d get super stressed out knowing I had to brief or present anything at any meeting, regardless of whether it was a small team meeting of ~5 people or an organization-wide meeting with ~100 people. The root of the issue may just come down to confidence, which you’ll build with time & experience. Start by giving yourself some credit - you go to all these meetings every single week & you always make it out the other side. If you haven’t already, maybe once you start talking at your next meeting & you catch yourself starting to get stuck, try pausing & casually mentioning that you have a stutter, so if you sound kinda weird that’s all it is. Then go right back to what you were saying. You may be surprised to see how indifferent everyone actually is by how you talk. In fact, the people that are actually worth a damn will likely hold more respect for you because you’re strong enough to keep pushing through every week despite your struggles. Tl;dr - stop beating yourself up & remember that no one is as bothered by your speech impediment nearly as much as you are. Keep going to those meetings & killing it, you got this.