She attended Kyneton Secondary College, before going on to complete a Graduate Diploma of Arts in Commercial Radio in Melbourne.
She spent ten years working in radio as a newsreader and journalist.
In 2002, Mercieca won the Australian Commercial Radio Award for Best News Presenter in a provincial market.
[2] During this time, she also had walk-on roles in various television shows such as Neighbours, Last Man Standing, and 'The Secret Life of Us'.
[5] She authored Getting Naked: The Dating Game (2011),[6] recounting her personal journey navigating relationships and love.