Hadn't heard from the DS for a while, so I sent him a text. He called me back, sounded a little down. A little prodding... and I found out he got a C on his first Calculus II test. Anyhow, you know how overachievers can be...I told him to study more. He said some are constantly doing all nighters, but his plan is to get sleep since he's in it for the long haul. He said a couple of his classes are really hard. Is this normal? How's everyone else DD/DS handling the stress?