history: I failed my Calculus exam despite having studied all nights. It was heartbreaking for me It was pretty shocking for me to learn that I have failed my Calculus exam when I had studied so hard for it
current: Ahhh.  Math.  I have certainly been there before.  I am so sorry!  Is there any way to retake it?
next: Only next semester. I feel like I have wasted much of my time