Please ensure you check this each year before you enrol.
It is recommended you allocate at least 10 - 12 hours per week per unit you are enrolled in (this includes scheduled activities and general study time).
So get started by doing an audit of your time. Remember to include everything such as travelling to and from work, preparing meals, taking children to school, as well as things like cleaning, shopping, participating in sport, etc.
How many hours a week can you dedicate to your studies? This will help you plan how many units a semester you can successfully undertake.