Public speaking is killing me

So this semester I got the most dreadful class 😱 SPEECH!!! 😩 This is one of those things where I struggle the most, but I of course want to do my best. I have an introduction speech on Wednesday and it has to be a minimum of 5 minutes. Can’t say any um’s or uh’s and thats like my go to...I have no idea what to talk about. I just don’t want to look stupid or sound like idk what I’m doing.

If anyone has tips on how they got through their anxiety would be so appreciated. I literally go up there and can’t breathe, heart is racing, can’t think to save my life, and I get so shaky. 😟😟