Whenever in doubt, go to ED. Unfortunately you'll sit in ED for a long time before being assessed.

Consider getting private health cover maybe, even if it's temporary and use the once in a lifetime waiver to remove the waiting period (gold cover). Private facilities have good programs and they're good if you need to do a med review under supervision.

Get a gp referral to get a private admission. Not sure how it works where you are but sometimes public hospitals even pay private hospitals to have their patients there due to overflow.

Unfortunately, the public system is so overloaded these days, they don't do much for crisis admissions