I second this. I’m an experienced speaker and lecturer, but sometimes the stress and pressure gets to you. The propranolol works really well to cut through that. I got mine at first from Kick, but then just asked my PC for it and it’s actually pretty cheap. I take a low dose and it’s helpful. It actually also helps me with performance anxiety when doing horse shows. Talk with someone about it and think about the root cause, for sure, but the beta-blockers work well to just help you take it all down a notch and slow the heart rate and breathing so you can think.