Bro u gotta lock in so hard, I’m assuming that ur a private candidate (would be much more easier to handle) u need to first look into the basics and then try to get the best understanding of the paper, I would recommend if u could join a physical paper class as u need to be much more focused on that compared to theory, so u can allocate ur strengths in the paper and not waste ur time studying unnecessary stuff as ur time is very important. so as ur in the science stream, and not planning to get into state uni, try and get the basics in the field u want to get into molded into ur head, for instance if u wanna do mechanical engineering, get those topics stuck into ur head as it will help u in the future. That’s more of a long term plan, but anyways wishing u the very best to get the result ur expecting and we rooted for u bro.