Don't worry, you're not the only well feeling run down. All I seem to do now is, wake up -> eat (on the train if I'm late) -> car -> train station -> train to city -> train to Huntingdale -> bus to Clayton -> lecture/tute/lab -> library/eat/study/sleep -> next lecture/tute/lab -> eat/sleep -> next lecture/tute/lab -> bus -> train 2 -> train 1 -> home -> eat -> 30 mins to 2 hrs of study (I'f I'm lucky) -> sleep.
Rinse and repeat.
(.....the life of a Monash Western Suburbian, besides TrueTears)
Also what doesn't help is when getting run down makes you get sick. Got a bad cold atm, got halfway to the city on friday, ran off the train and threw-up on the platform, and came back home, then had to try and catch up in what I missed out on.
I'm struggling to find the time outside of class, with travelling being 1hr30mins to 2 hrs one way, been doing some work on the trains, but only when I get a seat, don't always get one coming out of the city at peak hour. By the time I get home aswell, I've run out of energy to do much, and the "study" isn't as efficient as it used to be.
But we must push on, and remember, it's not all year round, just 2 sets of 12 weeks with a mid term "break" (well study probably) and a couple of weeks of exams.
Oh and sucks about your traveling times, sounds similar to b^3, hope you don't have to many early starts/late finishes 
Yeh 8am starts kill........ (dam you 5.15am wake up!) But the important thing is that we are still enjoying what we are doing.