How much does it cost to study in Australia?

Good day, I'm curious about the cost of studying in Australia. Can you provide me with a rough estimate of the expenses involved? Are tuition fees significantly higher compared to other countries? What about living costs, like accommodation, food, and transportation? Are there any scholarships or financial aid programs available for international students? Lastly, do the costs vary significantly depending on the institution or the course of study? Thank you for your insights.