G'day and Good Luck Naythan!
Don't let the maths and physics thing stand in the way. If you really get stuck WA Aviation College have some shorter courses in Maths and Physics which you can do which are a lot more "with it" than many TAFE's are offering.
Victoria - wow what a great place to have an instrument rating
Hope you fly though this, I'm just preping for the meteorology exam. I flew my aircraft home from its annual last week with a friend who dropped me off in a foxbat to pick me up.
It was magic as we landed, the sun was on the horizon, his strobes were on and I came in and landed behind, it was magic, I wish I had a gopro camera in the aircraft to film it all.
Wishing you all the best - have lots of fun!
Brook