The course is hard if you don't study or put in some effort. You can't fudge your way through the course since everything is very exact. If you're an ordinary actuarial student you will be fine. Keep up with the workload and put in your study hours worth. Just be prepared to never come out of an actuarial subject exam thinking it was easy unless you're an absolute gun.
The course deals with insurance related material and finance in a mathematical approach. Off the top of my heard, you learn about insurance premiums, insurance reserves, pricing, products, financial modelling, statistical theory. Check out the website of the course subjects to gain a better insight.
http://www.acst.mq.edu.au/undergraduate/degrees_and_programs_of_study
Look for links to the Macquarie handbook to get brief descriptions of the individual subjects.
But you should also take into consideration what kind of work you want to head into when you come out of university. Half of my friends are going into non-actuarial fields in finance.
All the best.
