Scary thought

Tomorrow is my CCA exam. I think I'm ready for it, but... I'm always rather unsure of myself before a test. And this is the biggest test I've ever had to take. If I pass, I will be certified. That means, when I get a job, I will get paid more because I know what I'm doing. At least, that's what it's supposed to mean. Anyway, if I don't pass... well, I can still get a job, but it will mean less money at first, and I can't take the test again for at least 3 months. And there is pretty much no such thing as a local test. And it's $200 every time I take it. So, I would prefer to get it right the first time.
Please pray for me. Pray for peace and that my mind will be like a filing cabinet with the right files available at the right time. I had a little freak-out session yesterday. But I got lots of prayers, and I feel better today. Pray that I stay that way. How can I be so excited and so petrified at the same time?
I have enjoyed these classes so much, and I really feel that God has had His hand in it the whole time. I have been begging Him to give me wisdom in what to study, and good recollection. Please, God, don't let me fail!