our thoughts are with you Mario, we hope for the best for you
we also hope that your doctor or someone at the hospital has advised you of possible eligibility for the Commonweath CAPS scheme which can provide a non-means tested allowance of (I think) about $600pa. for essential catheters etc. Doesn't cover it all by any means but it can help.
Who can get a continence aids payment - Australian Government Department of Human Services
there is also a non-means tested carer allowance of about $60pw that Heather may be eligible for if she is looking after you while you are unwell -
Carer Allowance - Australian Government Department of Human Services

