jintor when i did presentation training back in the day this stuck with me
87% of what you think will happen does not
8% of what you think will happen does
5% of what happens is out of your control
thereforoe statistically you will be fine. Also you are never as bad as you think you look. Record yourself presenting and watch it, you will be surprised. Learnt that one at training as well.
and a pro tip for the lot of you, if you ever have to do a lengthy presentation. rehearse it, but rehearse teh first five minutes over and over again
why? because the first five is the time you are most nervous. if you can turn on autoplay and get through that, the rest will flow fine as you will be accustomed to being on the stage