RaichuGirl, Hmm... There are a few things you can do.
~Practice reciting your notes out loud at home before the actual event. Time yourself if you have to, so you know how long you take. If you do that at least once, it'll be better ingrained in your head so when you have to say it for real, you'll already know what you sound like.
~I know one of my own weaknesses is that I lose my train of thought and enter points of silence. I managed to remedy that by keeping myself talking, even if it was simply reiterating the same point but worded different ways. ...According to my peers in speech class, that's now been ingrained into me and that weakness is no longer present. So if you find you lose your train of thought, try and repeat the same thing you just said, then glance at your notes and see where to go next.
~In your notes/note cards, you may want to bold or underline certain points, so that you can visually picture where you are, based on what you can remember easiest. For myself, I bold wherever I quote a publication, and indent each sub-point.
~Keep two important things in mind: you are not in a judgmental atmosphere, and nobody gets it right the first time. In the few weeks I've been in speech class I've improved drastically, but only because I've had to give a lot of speeches. That was not only a push for me to get better, but a catalyst. I think the more you give speeches, the better you will get at it. Practice does make perfect, and also, when giving speeches, find what comes most naturally to you about it. That way you can fall back on that when you hit a snag.
*sidehug* You'll be fine. I didn't think public speaking was my thing either, and in a sense it still isn't, but now I know how to do it well. I'm not perfect either, though; I myself still have problems with eye contact! But do know that you aren't alone out there and many people have gone through the same things you have. I'm here to help.