So I have trouble with presentations because they give me anxiety. Especially nowadays, with my anxiety controlling a lot in my body (heart rate, warm face, queasy stomach), I have a really hard time. I have emetophobia, so I'm very overly aware of my body and I get very worried that I may v*mit from anxiety, though I never have before. 

I have to give a 10-15 minute speech in front of about 15 people either tomorrow or Friday, and I'm terrified. I can't back out or ask for another assignment because the whole class is about speeches. I can't drop the class because I need it to graduate. 

Anyone have any tips to not be so worried about it? Or tips to calm down beforehand? I have adults I can talk to at school before the speech, but I'm still very scared. I don't want to mess up and I really hate the physical symptoms of being anxious.