Apply for visa and accommodation. The university will provide you the related information and usually there're enough time for the application. There are different types of accommodation (may vary every year so check out the email from university). Some includes the meals while others may not. You can choose the one you prefer.
First a picture of USYD (also a spot of Sydney, tourists coming every day):
Usually you can take four courses for one term (so the workload may not be that heavy). Besides study, don't miss the beautiful nature scenery in Australia. The university will also organize this kind of activity.
Usually there's a midterm break (like reading week in CU) for you to explore Australia. Travel to other cities like Melbourne and Brisbane. Don't forget to visit a zoo to see koalas 🐨 and feed kangaroos 🦘
After you have taken all your final exams, you can choose to continue travelling or return home~