Please, Please, Please Help!!!! Thanks?!

Please, Please, Please Help!!!! Thanks?

Tomorrow i have to play the song Titanic on piano in front of my whole school that has over 1000 students and the teachers will be there. Can i have some tips so i don't get nervous and muck up please. I'm getting nervous now. AAAAAHHHH.
Thanks (I know i posted this twice but i want some more answers)

1 week ago
Just thought i'd say it won't matter if i mess up much because there is a teacher playing violin and another playing cello so that might cover me and most of them are tone deaf so they won't notice. =D

6 days ago
HAHA it's no problem, they forgot about us anyway.

hahahahaha, sorry, I know how you feel, I used to wake up in the mornings of a performance day and want to scream like that too AHHHHHHHHHHHHHH ....lol

I'll be honest I take a performance drug now to stop the jitters.

But outside that, I've taken a performance anxiety therapy group and there were many ideas to use, such as finding a comfort place even if it's imaginary, and seeing yourself at this safe, comfortable place, anytime you feel nervous, you go there in your mind and feel the peace. something else they tried was to imagine being at the bottom of a pool to feel quiet and at peace, allowing the thought of bubbles flowing up. Or, to imagine you're in this protective bubble at the piano and everything else, everybody else is outside of this bubble layer and far away. What use to work for me, when I was performing on the piano, I would imagine myself playing in spirit and not really sitting there in the physical. Feel yourself light, and that you are delivering a message the composer wrote. The audience is your friend and family and you all want to share this experience together. Take the focus off yourself in this way. Take sometime tomorrow, the day you have to play, and be alone in a quiet place to meditate and to allow your focus and attention to gather together to be mentally prepared.