Public speaking is scary. Almost all of us can resonate with the following: “I’d rather be the guy in the box at the funeral than the guy talking about the guy in the box at the funeral.” But keep your head about you: the good news is, your audience WANTS you to succeed. Earn their trust like that concert pianist. Do whatever it takes to prepare well, to integrate all the disparate pieces into a harmonious whole with no wasted words, because a speech that you've molded to perfection will be as much a joy to listen to as it is a joy to deliver. Remember, success, in this or any other human endeavor is always available to the one who pays the price required by life in the proper coinage. And in this arena when you the speaker succeeds, the audience succeeds.
In other words, you plus this topic plus this audience really IS a match made in heaven!