After you arrive in Australia, the first thing you must do is find a place to stay. You may have already organized rooms through your friends and family in Australia. If you have no family and friends, then you may find short-term accommodation through your college or university. You need to visit your provider and see how far it is from the place where you live.
You need to make sure that you enroll on the right date, so please read carefully your offer letter and COE. You must open a bank account, obtain a Tax File Number, and buy a Mobile. Please check the link below for more detailed planning on arrival in Australia: