It would be too much for you, according to the government.
But it’s possible the developer will do just that, as the classification board has retracted their ruling.
At least for the time being.

But it’s likely scenes involving drug use and specific acts of violence against minors are to blame.
Silent Hill f’sSteam pagecontains an extended warning about contents that would clash with Australia’s typically tough ratings process.
These depictions do not reflect the opinions or values of the developers or any individuals involved."
It’s possible Konami will now make changes and reapply for classification.
The game’s release date hasn’t been announced yet.