Don't worry Nettie, (it's Mish by the way!!!) since you're not getting a UAI, scaling is not an issue. Just keep doing your best and everything will be fine!! Congrats with your IRP, too!!
aditya, I agree that everyone should do their best in their subjects, but isn't that what the HSC is all about to the majority?? Teachers are right when they say "choose subjects you're good at and enjoy" because they know that if you enjoy them, you have a better chance of succeeding.
By the way, I also got my IRP back - 19/20 for the product, plan and diary. So I was happy with that!! My IRP was on the advantages of homeschooling regarding child development.