Yeah I barely got by last semester :/ I worked a fair bit in patches most weeks 10 hours or so, some weeks 16-18hours and during semester break I worked everyday from memory :| That was a bad decision I needed to catch up with everything. I kind of relied on myself understanding what's happening immediately and being able to answer exam questions adequately without too much work, in hindsight, wtf was I thinking...
This semester I'm trying to keep up with everything while working 10 hours a week. I'm getting most of my readings and tute work done, I've planned to do extra study/revision but never have gotten around to do it haha I waste too much time procrastinating

I'm supposed to be studying for a midsem exam today!.. Haven't even started xD
Maybe you need to manage your time better?
168 hours in a week, - 60 hours, -10 hours, -56 hours (assuming 8 hours sleep) = 42 hours - 25-30 hours for going out/friends/etc = 12-17 hours enough time to do a bit of study, assignments. That's just a wild stab tho you might have other commitments, but I know that I have plenty of time that I could use better... I still waste it tho haha