As a homestay provider, I've had the privilege to host many foreign students in the past, most of them from Asian countries. What I've found is that the different cultures place different pressures on the various students and ultimately, it will impact on how well students can adapt in a new environment.
So here a few things to look out for:
Many foreign students have an acquired taste for food selections and prefer foods from their home country. Although Sydney has one the most diverse food cultures in the world, most of this culture is dining out which can be straining on student's budgets. So home prepared meals tend to be majority of student's preference. Depending on where you live, there are specialty stores that sell certain foreign condiments, herbs and spices. Many of my students had certain ingredients shipped to them because they missed them so much.
You may consider bringing certain dry ingredients into Australia, however, note that certain foods are not permitted entry into Australia.
Many students make friends who are from their own home country which makes complete sense seeing as you'd naturally seek familiarity. However, doing so may slow down progress of English speaking. I would encourage you to make friends from different nationalities so you can learn from each other. If you find it difficult to meet new friends, there are many social networks in Sydney that you can join.
3. Study style
Many countries (particularly Asian countries) learning style is dictatory. Often, students who are used to this style of learning find it difficult when asked to form their own opinion, especially in essay writing. I encourage students who find essay writing difficult, to seek additional tutoring as this may have impact on your assessment results.