You can get involved in the Australian political system in lots of ways Paige! You could write to or email members of parliament, or sign a petition. Parliamentary committees encourage people to give their opinion on bills—proposed laws—and issues of importance to Australians. You could also attend a meeting or protest to let members of parliament know you are concerned about an issue.
For more information on these and other ideas of how to get involved in Parliament, check out this fact sheet.