@Viennr Hindi ako familiar sa student visa pero kung balak mo magtransition to TSS na 2 to 4 years working visa or to PR kailangan yung nominated occupation mo nasa list na ito https://www.homeaffairs.gov.au/trav/work/work/skills-assessment-and-assessing-authorities/skilled-occupations-lists/combined-stsol-mltssl
My suggestion is ngayon pa lang check mo na kung nasa list yung nominated occupation mo and kung ano ang requirements ng assessing body mo for a successful skills assessment. Kung hindi eligible for a 189 visa yung occupation mo pero eligible for 190 or 489 kailangan mo ng state nomination. Pwede mong icheck isa-isa yung website of each state to find out which ones ang nagssponsor ng occupation mo and kung ano yung requirements nila. Most states may separate guidelines for applicants who have studied or are currently working in their state.
Pabago-bago yung immigration rules and nagrrestart yung fiscal year every July so nagkakaroon din ng changes at that time. Pero maigi nang may identified path ka to obtain PR since 3 months lang yung course mo so baka makahabol ka pa sa fiscal year na ito or sa 2019-2020 fiscal year. Good luck!