hey i just recently completed the hsc and i wanted to participate in 3 sciences and pdhpe unfortunatley my skol had some subs on the same line as each other, so i got a chance to do phys, chem, ext 1 maths , mathematics, advanced english and ancient history, my advice to u would be to ask urself some questions like how willing are u to participate in the subjects, is this subject going to assist me in university, how well am i doing in this subject and do u truly understand what u are being taught. as a former yr 12 student i know how hard is was coping with the work load that i was provided with especially with ext maths as we only did ext once a week for a 2 hour period meanwhile we had to complete so much work in that time including homework afterwards. however by the time it came to the hsc we didnt finish the course fo ancient history, ext maths or mathematics so to make my life harder i had to teach myself and study for the hsc at the same time so my suggestion is to try the subjects out for a few more months and find out were u are coming another thing my skool never informed us about, and by the end of lets say 2 months if u are doing well at the subject gud for u continue it but if u are not drop the subject that is holding u down the most... so personally its up to u, if it helps u in anything and ur doing well at it keep it.. trust urself to provide the answer are u really coping with the pressure of these subjects... gudluck
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