...of hell what?
Yesterday was my first day, and it is "of hell." Why is it "of hell" you ask? Because, the second year of medical school is a very exciting and frightening thing.
Exciting: you are furthering your medical knowledge and actually learning some medicine (pharmacology/drugs, pathology/disease, physical exam skills/things your doctor does to see if you're sick, etc).
Frightening: The first day of school marks the first of many hellish days that lead up to your first board exams. :\
Hence the need to be on-the-ball.