I have a moderate stutter and I was messing up all my interviews because I kept trying to hide it from the interviewer. My advice is to acknowledge it up front by saying something like “you might notice that I have a slight stutter, it doesn’t effect my work but if I take some extra time on a word just know know that’s why”. If you acknowledge it upfront you won’t have to stress about trying to “hide it” from the interviewer and I’ve had it become a point of discussion where I can talk about how my stutter has made me a more thoughtful communicator and empathetic person. You have to turn it into a strength (imo). Another good tip is that a lot of communication is non verbal, so make sure that you have confident posture and are maintaining good eye contact during the interview, if your verbal communication isn’t great because of your stutter, make sure the non-verbal stuff is locked in 100%. Just my 2 cents, cheers.