Hi Lauren,
Your recital sounds heavenly.
I just did Beethoven PC no 4, Chamber Version, on Sunday. I don't have any magical answers for that last couple of days, but here are a few ideas:
Play your pieces but don't overwork them at this point. You've got them.
When you feel that edgy nervous sensation, remember how well prepared you really are! And NO ONE else in that audience can play this recital at this moment but YOU. (Also, no one except a pianist would know if you made a mistake here or there--and a pianist would sympathize because he/she feels the same way.)
WHY are you even doing this? Because you love the piano and you love to make music. So you are getting a chance to share this with others--it would defeat your whole purpose to NOT enjoy it. (Right?

) So have a good time!
Allow your facial expressions, body movements, etc, to flow right along with the music--don't try to "look" any certain way or do anything unnatural to you during your playing.
BE the music, as my teacher used to say.
Have fun!
Teresa