Oh hey!! I like the idea of a grad school group. In my experience at least, grad school really is a different world than undergrad (and I love it).
I agree - when things get uber busy, school has to take priority to rigid workout schedule. I will work out when possible but I'm not gonna beat myself up if I lay off a bit. I also avoid eating anything from the cafeteria at all costs. Not that there aren't healthy ways to make it work, but it isn't a viable option to live off. Annnnnnnnnnnnd its always filled with super immature undergrads and I might be a jaded impatient grad student haha.
I'm well into (too long :P) into my MSc and don't take any actual courses. I've completed all the physical experiments for my thesis so I currently am holed up in my office working on publishing my data. I've also TAed quite a bit but next semester I'm the actual instructor for an upper-level course in my research area. Really friggen pumped, in a super nervous kinda way
ETA: Anyone else in this current reality? Anatomy of a Winter Break