Well for one, I have to travel more than you. Public transport is just crap, especially westbus. If im lucky and no waiting for buses/trains then just over 2 hours. On average though, going to uni ~2.5hrs, coming back +30minutes, since the trains never seem to come on time.
I noticed the train is a good place to doze off, or at least look dead
Oh and the fares are pricey, however I think Westbus are just evil, it costs nearly as much for there trips for the week as I pay for the Travelpass Weekly Ticket.
They should use that damn T-system they created (the school card thingies, that swip over some machine with a T on it, and it beeps if its valid or stuff, and come out with Weekly tickets and such). Just a thought.
Also, with respect to living on uni, its quite expensive. Quite INCREDIBLY expensive.