Get a job and save for the return flights. If you want to go that much, you will work hard and earn enough. I am sure mum and dad will help you out if you don't have enough for the return flight - the return date can always be changed if you stay longer or decide to come home earlier, for a small fee. Get your Visa, very important. Look on the internet and book a Youth hostel / Backpackers hostel to stay in for when you get there, perhaps close to the airport for the first night, and then further into town for as long as you like. You will find your way around, everyone is really friendly out there.. If you are moving around, look online make a note of hostels in the areas you are moving to, and book them in advance. Don't expect luxury. Find a job in Australia, if you are of the right temperament, you will meet lots and lots of people in the same boat as you, mostly in the various hostels where you stay. It can be quite cheap to live out there, you can earn enough for your food and board. And if you are pleasant you will have no trouble finding a job. You can stay for a year on your Visa and can renew it if need be, and if you have a job. Good luck.