How badly will my cohort screw me over? (2 Viewers)

[Zoinked]

My school is ranked in the 500s, and my prelims have mostly gone down like this:
Bio - i got 99%, second place got 80ish
IPT - i got 97%, second place got in the 70s
English Adv - same as IPT
English Ext 1 - i got 95%, second place got a low 60s
and so on

I know marks and results for prelims =/= HSC results, but it's seeming like my cohort is going to somewhat affect my ATAR and HSC results.
The question is, how badly?

A E S T H E T I C, you remind me of porcupine tree ( a 2015er) who kicked arse in a dogshit school. He ranked first in all subjects I think and got a 99.90 atar with a state rank. Keep up the goodwork and that will be you!