It is pefectly nomal to worry. I know I feel better about the exam today than I did last Friday night. It will haunt me if I fail by one or two points as I can think of two points that I gave away. However, what are you going to do. If I take it again, I will need to just slow day and manage my time better. Either way I'm happy with the fact that for my depth section there were basically only 2 questions that I did not know how to do. One of those I believe I figured out last night. The other, is so annoying I'm protesting trying to figure it out. LOL. Many of them I did very very quickly, which scares me a little because I never re-checked. I keep thinking; did I convert the speed from MPH to Ft/sec? ect ect. Personally, I would like to see an exam that was maybe a little harder where they graded your work, than one that is worded such that you need to double check and make sure you didn't miss a key word in the question, or you had a unit conversion error. In the real world, engineering work is almost always checked and then re-checked. I would rather have the engineer who knew the concept of all 10 problems but made a few converting errors or calculator key stroke errors, than someone who only knew 5 of the concepts and guessed on the other 5. But, saying that, I understand the logisitics behind scoring that way across the country. It is, what it is.
Just try to forget about it ( yeah right) and see what happens.