Help!! i have to play the piano!!

I actually can't remember the last time i was actually scared to play the piano for church, but for the first time in i don't know how many years, i'm actually terrified about having to play tomorrow. i'm still not quite sure how it happened, but from going along to a 'team time' for the fellowship, it turns out that all the regular muso's are away for various reasons, and they were (obviously) desperate. Normally, it doesn't phase me to step in and help, but when you don't know 6/7 songs that are being sung, there is no music, or the 'music' is just song words (in Thai mind you) with chords above the words, it doesn't really help. Then on top of that, half the time, they want the piano to play some kind of 'background' music while they're reading the Bible, or praying, or saying something else, so i have to somehow have the music ready to go at the start of the song when they finish. It's hard enough trying to do that when i can actually understand everything that's going on around me cos it's in English, but when it's in Thai, and i'm understanding about 50-60% of what's being said, i'm just not so confident. I'm just scared that i'm going to be more of a distraction rather then helping everyone focus on the words of the song and on worshipping God.

So, if you happen to read this before tomorrow morning, i'd REALLY appreciate your prayers. There's a reason why i've tried to keep a low profile for the past 6 months when it comes to music at church. thanks for your prayers. i know that God can do amazing things and enable us to do things beyond our own ability. Please pray that God will help me with that tomorrow.