Just don't want to do very shit.
Subjects:
eco
Math adv (probs to standard if i do ass)
business studies
physics
eng standard
pdhpe
I did Maths Advanced in Year 11 and I dropped it towards the end of the Preliminary course, just before the final exam but now that I look back, I would honestly say to stay in Advanced. The majority of the class was failing and I was just passing at the start which gave me the feeling it would be like that the whole year (I was wrong - people picked up), which kinda made me feel bad about myself. I wish I had stayed in Advanced Maths because it is so much better than Standard rn because it's always challenging you, as well as the class has wayy more competition, keeping you on your toes and willing to try harder. Don't get me wrong, Standard Maths is easier than Advanced Maths but Advanced opens more pathways for you, especially if you are looking to do something medical/math-related. Of course, you can always do a bridging course, which will help you acquire the knowledge needed to do the course. When doing Advanced Maths, I would say to find good YT channels that cover the content you will be covering such as; Khan Academy, Professor Leonhard, Eddie Woo, and there's several more you'll find on repeated concepts such as logs, calc, etc. Looking at physics, I believe you'll need Advanced Maths for it because the maths learnt in Standard is nothing close to what is applied in Physics. I didn't do Physics but that's an observation I made when I had to attend one of their classes.
I also did Business Studies and still do. Idk if it was just me but I honestly found Year 11 Business more content-heavy than Year 12 Business (so far at least), because the concepts were all different to each other. However, in Year 12 Business Studies, there are 4 main topics; Operations (easy), Marketing (easiest so far), Finance (not done yet) and HR (not done yet) which all correlate as they are called key business functions. The topics which I've covered so far are pretty easy but there is a lot to memorise but some are also common sense (you can pass by waffling an exam, even though I wouldn't recommend it). In Year 11, the best thing for you to do is to constantly write a report or essay on whatever topic you've done which will help you immensely when it comes to Year 12. Try doing past paper questions because there are usually trick questions here and there and watch out for them.
Advanced Maths and Business Studies are the only subjects I shared with your Year 11 subjects so I hope that helps!
All the best!!!