I stutter and do presentations. I practice the heck out of them the night before. Like 15 times. Use a thesaurus. Get stuck on a word? Find a different one. The first time I stutter, I will say “I stutter”. If anyone has questions about, I will answer. I find talking about it openly makes it not awkward. I had an interview the other day in which I stuttered. I said “I do stutter” and told him how I manage it in public speaking situations. It’s my job to lose now. I wish you the best of luck.