["I have my final math test tomorrow. I've never been so nervous!", 'Oh yeah, I can relate.  I always get uneasy before a big test.  And I always end up cramming and studying the last minute.', 'Yup, that is me right now. I am really not sure if I am going to pass or not.']
Well as long as you know the basic concepts and material and have it fresh in your mind for tomorrow, you should do fine.  I find I always worry and end up doing better than i expected.
I have my final math test tomorrow. I am so nervous.