Suffered with a stutter for years and had to do many presentations. Best thing I found, is not to read from a script or keep any of your points word for word. Almost do it off the cuff so you can steer away from your trigger words that make you stutter. Search “circumlocution” and read up on that basically saying more than u have to about something which helps me make a point when speaking, while not coming across words I’ll trigger on. Finally no one actually bothers about your stutter easy to say but as soon as you realise that the worrying will go.