Friggin Physical Chemistry was the closest I came to having a nervous breakdown in college!
Seriously...I was operating at the extreme edge of what my brain could absorb, and I needed it to graduate.
Fortunately, I was a hard and dedicated student, and my professor looked at me one day and said: “You don’t look well...is there anything I can help you with?”
And he gave me some extra lessons on his own. That was pretty rare.
Oh, yeah. Hit a huge rock with P-Chem. Don’t know what the problem was, either.