Practice! Know what you are going to say backwards and forwards. When you have a stutter you do not have the luxury of trying to wing a presentation. Lol I find that if I write what I am going to say by hand it helps ingrain the structure of what I am going to say in my mind. Then practice a few times and see if there are any areas where you get stuck consistently. If so write down some alternate ways to convey the same information, so you have a back up plan when you hit a block. Print out your outline or bring your notes. One thing that really helped me in a recent presentation was using the AI speaking coach that comes with power point. Getting some non judgemental feedback was helpful. Just try not to curse at it if it pops up suggestions as you are practicing. It doesn't like it. 😆