Should i feel nervous when i stutter during presentation?

Should i feel nervous when i stutter during presentation? I think i need some inspiration I do stutter. I get scared of stuttering during presentations. Like i start out not stuttering but then i do. Then i feel like really bad that i did it. I feel like i let my class down. i am being judged and im like "i failed this presentation and my class" I would like some inspiration, on this.