How do you do a presentation without embarassing yourself?

I have to do a presentation tomorrow. And another one next week. However, I’m the FIRST one! On top of that, it’s an English project, and I’m not that good at it. The topic is about tasers, and I’m scared people will make fun of me. Also, the presentation will be about 4–8 minutes, and I’m way too scared. My head starts spinning, my hand starts shaking, I start sweating, and I can’t focus. The moment I go up there, I forget everything I’m about to say. Making eye contact is impossible. I’m honestly scared out of my mind! P.S. I know I already asked a question about this, but it wasn’t helpful.