Are you tutors or course leaders aware of your anxieties?
When I was at uni we had a “Student Support Services” where if we were struggling with anything or had any disabilities, mental health conditions etc, appropriate arrangements were put in place.
E.g. if a student with anxiety had to do a presentation, they could do it infront of a smaller group, and had a few minutes extra onto their time limit.
If you haven’t already, please speak to any student support services, your personal tutor or any tutor/course instructor you feel comfortable around and make them aware of your anxieties.
I’ve done a presentation at uni infront of 300 people on my course at I was honestly bricking it. I felt like running out the back doors.
But, please know you won’t be the only one feeling like this.
Eat a few hours before and make sure you go to the toilet before it’s your turn. Sounds daft I know, but not needing to go to the toilet will be one less thing to worry about.
Take some notes with you. (If you’re allowed). Take deep breaths, speak slowly. And if you’re concerned about the volume of your voice ask if there’s a microphone you can use. Focusing on 1 spot of a wall really helps me. If I make eye contact with someone then I’m more likely to get nervous and jumble my words.
Good luck, you will feel loads better once it’s over with.