@krizia Mam, suggestion lang po. Don't stress on anything at the moment. Not to put you down or anything but you seem not to have an idea on what you are going to do. Relax and read through the processes. Research, madaming makakatulong sayo dito. Here are the steps in gaining registration here in AU as well as permanently staying here.
English exam
Apply registration with AHPRA
AHPRA denies your application because we don't meet their standards hence they refer you to an NMBA approved study which is your bridging program
Complete bridging program from an NMBA approved school.
Reapply registration with AHPRA
6a. You will then receive your registration which allows you to practice in AU.
6b Once registered, either you have your skills assessed by ANMAC (Permanent residency) or you can look for an employee to sponsor you(Work Visa - 482).
Wait for your skills assessment from ANMAC. They will determine your points pertaining to your experience.
When your skills assessment is back, file for EOI and wait to get invited
Once invitation is received, apply for visa.
Getting a sponsor I would say is fairly difficult nowadays. Especially if one doesn't have much experience. Some regional hospitals still do.
There is nothing to be stressed about if you know the process. For now, take the first step...
To answer your question regarding the best pathway, I've just listed it above.
Cheers!