Welcome to the Forum! Always great to see another from Perth here.
There are three things that you need to get in place for successful weight loss. Making sensible healthy eating choices, good exercise and the most important of all - getting your head in the right place to make those changes into a permanent healthy lifestyle. You get that last one right and the other two will follow and you will be able to lose that 27 kilos...forever!
Wishing that better future for you.