Actually, contrary to popular belief free all day parking can be found at all times of the day (just don't tell everyone!). Spend time cruising around the suburbs near Usyd to find secluded spots.
However, you'll have to take the 10~25 minute walk in addition to morning/evening traffic which in my case places puts driving about 5 minutes slower than public transport, so it's usually better to park away and catch a train into Central/Redfern. (For Pharmacy Building Central might be better.. if you get things anywhere near darlington you may as well walk from Redfern.)
---
If you think smooth sailing will become the norm after first year, I would heartily disagree. This is never the case (until you start honours and decide to waste your first semester not working on your thesis).
Perhaps people just make mistakes in their subject choices w.r.t. what they will actually enjoy. A lot of courses aren't what you think they should be, and some courses are actually fun when the name might put you of.
Your best bet as first years, will be to collaborate. There is no one you can't ask, and as long as you know the right answer you will be able to work your way towards it. Many seem to spend time knocking their heads on the assignments/concepts/etc. Individual thinking is good, but sometimes it's like birds and windows.
By this, I do not mean copy answers. But I do mean getting tips from people who understand. Whether this is the lecturer, someone from the year above or a cohort it's your choice. Study groups help, so don't run away everytime lecture finishes or only ever stick to your pals. Do open up to strangers, especially around assignment time.
I mean, university is supposed to be a learning place more than a differentiating place. Exams will tell who is on top anyway.
And one more thing, don't watch too much TV (muahahaha). And don't party too hard (more maniac-cackles). You only have (as far as I'm aware,) seven years worth of HECS/HELP to spend redoing your failed subjects and bad degrees choices.