Started integral calculus class, but my little brother tore his ACL in school football team. Both parents were gone for a couple month on a work trip. Basically had to joggle work, looking after him, and finally school. My chemistry and biology classes are at A—A+ level, but I sacrificed my math class since I'm least interested in it.
The material isn't even that hard, but I took differential calculus last fall, so I remember nothing, and all integral material builds upon it. Today was the first time I finally am able to focus on education again. A day before the second math test. I did a quick calculation, and I need to score 90% tomorrow and on all future hws, exams and final. If it was an online exam I could've at least cheated, but not person.

My options are to go, and look humiliatingly into profs eyes, while scoring 20-30% and score D/E, or skip this exam and take a D/E this quarter, because my cumulative GPA will offset to <3.0.

My only ammunition is 6 aderall pills. What do?