Presentation of 'The Scientific Method'

As a person I consider myself very shy. I always have been. Presenting to me is like jumping out of an airplane for most people...not even joking. When people get ready to jump out of an airplane their heart races, they hope that it'll go well, but most have doubts that something bad could happen. That's exactly how I feel when I get ready to do a presentation and there's no way for me to stop it. I don't know why it happens, but it always does. Always. I try to calm myself down in my head but I can't. Once I get up there everything is blury and I forget everything that I am supposed to know. When my group had to present the scientific method I wasn't completely freaking out at first, but once we got up there I wanted to run out of the room. I can't tell you why but presenting is probably one of the only things that I get really nervous about. I never get nervous on tests or at interviews or when I have a big paper due, just when I present! Oh well, it's over now!