If you do an approved integrated course you can get FEE-HELP, which is a federal government loan of upto $96,000 to cover flight training. The loan is paid back thru additional tax in later years.
If you have been living independently you may get the Youth Allowance thru Centrelink, which I think is $240 a week.
You would still have out of pocket expenses for the flying training of several thousand dollars, so a part-time job is a good idea.