I love public speaking! Maybe I'm crazy
The more you do it the easier it gets. Here'* a little tip, when you first get up to the podium take a moment to look out at the crowd, smile and take a good breath. The most important thing in public speaking isnt how well you talk, how long you speak for, it'* being comfortable and relaxed. If you are at ease on stage the audience can see that, but if you're on the point of panic the crowd will pick up on that and make you feel even worse.
Congrats on getting up there!