You have the right to request the Department of Home Affairs to make a decision on your 820 or 801 visa (PR), even if it highly likely to be refused. Once refused you can appeal the decision by lodging an appeal application at the Administrative Appeals Tribunal (AAT) and remain in Australia while the application is in the AAT queue, pending a hearing date. If you withdraw your application, you do not have the right to appeal.
You may be able to apply for your 801 (PR) if special circumstances apply.
These include:
Sharing parental responsibility, if there is a child born of the relationship;
If your partner has died;
If you have been the victim of domestic violence.
The other option is to consider lodging another visa such as an employer sponsorship TSS or 186 visa or student visa while holding an 820 visa.