I just failed a DSST that I really felt like I should've passed... And... I guess I'm just frustrated...

I've taken many CLEP & DSST tests already, failing only my Pre-Calc CLEP by 1 point. I'd been expecting that CLEP to be difficult as math is really not my area, so I wasn't that put down when I failed.

Earlier this week I took the Art of the Western World DSST (I had passed the Technical Writing DSST before, so this wasn't my first one.) and failed pretty dramatically (I got a 373...). Which, you know, that's fine and everything, but I was just so shocked. Right before I turned the test in, I felt extremely confident about it and felt like I knew most of the questions and that I had this one easy. To fail by THAT MUCH... I just don't understand it. If I was to retake the test, I'm not even sure what I would do differently. I've taken a lot of these tests in the past, so I know how it goes. And I really felt good about this one...

Has anybody had this happen to them before? I realize there's nothing anybody can do, and I'm not really asking for anything, just stories of past experiences I guess...

Thanks.