If you think you're behind in content, I'd definitely recommend getting a private tutor as they'll be able to help you catch up with texts and such. If you're looking to get ahead, I would personally vouch for QED Education in Parramatta. I don't know if there are any other English teachers there but if you get James, he's an awesome tutor. They provide booklets that go over syllabus texts in detail (overall great teaching as well) but good luck!