English Adv. - 83 B5 (way fucking better than i thought lmao)
3u math - 93 E4
4u math - 89 E3
Physics - 86 B5 (ouch!!!)
Chemistry- 89 B5
Very happy. Went from being bottom of every class in yr 11 to top!
You could do a bridging course or just pick up the extension 1 books and learn it by yourself. I would probably advise trying to teach it yourself during the holidays and doing past papers to solidify your knowledge.