Congrats! I’m proud of you having a courage to try to get a job despite your stuttering. ^^ During the interview, I think it’s best to tell your manager right away that you have a stuttering issue. It can lift up the weight so they can be more understanding towards your situation and won’t have to question whenever they may notice that you were struggling to talk. It’s completely normal to be nervous for an interview. While to keep this in mind, you also want come out as dedicated hard working person that despite your stuttering, you’re willing to push through and get the job done no matter what. People like an individual with a perseverant trait.