If you would like to live and study a season in AustraliaYou can apply for the Student Visa, which will allow you to stay in the country for up to 5 years and work part-time. If you are a minor, an adult can apply for a companion visa. You have all the information in: «Tips, documentation and requirements to travel to Australia«.
You have all the information in: "Tips, documentation and requirements to travel to Australia".