Stats Exam the Friday night Plan

So...this is what it has boiled down to...Friday night...taking a stats exam. I can't believe it. Usually by Friday I am spent...ready to chill...even though I work on Saturday, Friday night is a night I can come home, have something quick and easy to eat and then watch a DVD or something with my husband. Tonight will be different...I have an exam to take and I have decided it won't ruin the rest of my weekend...so I am going to take it tonight. The instructor says it takes 2 hours...but since I am special, it will take me AT LEAST 4 hours I am sure. And...I am scared of this test. Scared that this will be something I can't get or understand. But, on the other hand I feel like I am a pretty smart person...and that stats are interesting...but is that enough??? Anyway...wish me luck, I am going to need it!