Think of rays, think of them fondly,
While you write your talk,
Remember that science is fun now,
And don't get writer's block!

When it's done you'll have to do your talk,
then you'll relax and can be free
And when you find that moment,
spare a thought for me.

(to the tune of "Think of Me" from Phantom, of course)

*hugs* Good luck, honey! You're going to be great! I have faith in you!