One of the things that really helped me out in being able to study ALL my subjects during the day would be doing Maths during school (I know I'm repeating myself with some of my other posts but I just want it to be known). I had around 24 Periods of Maths in total at school from 4 Unit and all I did during these lessons was sit at the back and pick out 'hard questions' towards the end of past papers, this is equivalent to 18hrs of maths study a week and at home I was able to divide my time between Phys/Chem/Eng without the worry of spending any time with maths. But this is an issue if you need to listen to your school math teacher (aka. you haven't gone tutoring to learn ahead of time) so I would recommend doing so if you haven't already but don't join one of the big firms (eg. Truongs/Du/Harry/ACE/Alpha Omega etc) as they are probably 1 year ahead and it would be hard to transition unless you have already been attending before yr 10. So I would recommend looking for a private tutor, to provide relevant and personalised acceleration for you, especially if you are interested in saving the 18 hrs a week (you attend tutoring for 2 hrs max and you save 18, worth the investment). Also try to squeeze in some more maths study during school lunch and recess, you can still sit with friends and talk whilst doing maths casually (what I did lmao)