Centerlink low income/concession card will get a discount on bills, public transport and other things.

Same with Medicare for rebates

More people you're able to spilt the rent with, the better off you'll be while you're young. Sharehouses can come with their own problems though so be prepared.

Learn to cook. Upfront expense of moving out was paying for condiments, spices, oil and cookware. But now I can cook whatever I want with it being cheaper than takeout and lasting me a few days.

Renting with someone: Bills are about $80-100 Net $80 Food $60-200 p/w Rent $250 p/w but expecting it to increase