Ash felt tired and unprepared for the test after staying out at the concert the night before.
I should never have went to that concert, last night. Now I know,  I will do terribly on the test, today. Didn't you study prior to going to the concert? I did, but the extra 3 or 4 hours would have helped, I supposed. I am sure you will be fine. You have a B, and it is the end of the semester. Going back to the concert, was really good though. So yes, maybe everything will be fine. Just relax beforehand and clear your mind before you go in to take the test.