Totally. U can make up for it in HSC.
Prelim marks
Legal st: 62
Business st:84
Adv Eng: 57
SOR I: 74
Drama: 80
2U Math: 52 (dropped to 16% beginning of yr12)
You can still redeem yourself if u screw up half yearlies
HSC marks:
Legal: Half yearly mark= 80 HSC=87
Business st: Half yearly mark= 72 HSC=92
Adv Eng: Half yearly mark= 60 HSC= 89
SOR I: Half yearly mark=76 HSC=88
Drama: Half yearly mark = 80 HSC=85
Gen Math: Half yearly mark = 66 HSC=91
What would have been an atar of around 68 became 91.9