Currently, I'm doing pretty badly in my courses and I'm not sure what to do, I'm barely maintaining a 50% in math advanced and the most recent test has brought that down further as I failed the prelim. currently id say I'm maintaining about 45ish % in math advanced but I think I can do better, a around 60% in business studies, around a 70-80% in economics, a 75ish percent in English standard and around a 50% in physics, what should I do as I already am thinking of dropping Engineering studies as it is not interesting to me and I've barely passed all tests and at about 50% in that course as well. I want to know if there's a way to switch this all around within the year I've got in year 12 and if possible get above a 90 atar and if so what should I do.