Just take a deep breath and pretend you're just talking to one of your mates.

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Every man dies. Not every man really lives.

Also, take deep breaths during your speech. Don't be afraid to pause or talk slowly. People often make the mistake of just speeding through their speech, which will only make them more flighty and, most likely, lower their grade as well. Speak slowly, relax, and BREATHE.

You'll do great.
And remember, at least half of the people in that room are just as nervous as you are.
You aren't the only one.

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Do not rely on this broadcast alone.
We are only as strong as our signal.