So, I admit that I've been having a mild, months-long temper tantrum about having to take this math test. I also admit that I had done little more than an all-math overview before yesterday, which definitely wasn't the place to begin. Looking at everything at once just overwhelmed and deflated me.
I got the excellent advice not to study the material on the test, but to do lots of practice questions. I didn't realize how right that advice was until yesterday when I finally took the diagnostic quantitative ability test. I know I'm being silly, but I've worked myself up so much that it literally gives me the heebie-jeebies to open the book to that section. After taking the test and beginning to look at the explanations to find out what I did wrong, I have realized that it's all pretty simple. If you know the rules, you can do most questions in under a minute, probably.
So, I feel a lot less of a hopeless case and now I'm gonna fudging "Will Hunting" that sugar.