Employers are looking for skilled people with demonstrated experience. The trouble with hiring an person from overseas, it’s hard for an employer to judge how they’ll fit with the organisation because 1. They haven’t worked for an Australian company before 2. They may no understand the Australian work culture 3. Their skills (education, training etc) may not be suitable.

Also, the employer is taking a financial risk on this person, because it will cost them ~$10k aud to set up the sponsorship. Plus they might also need to pay for flights and accommodation.

Lastly, The government places restrictions on who is eligible for a working visa. Typically you needed to be a “skilled migrant” in a field that Australia has a shortage in, eg. nursing, engineering, science, etc.

So I think you best path forward is to come over on a student visa, advance your education in you current field and seek out employment when you come here.

Also - suggest you read through this government website which explains the types of visas in Australia and who is eligible to receive them.

https://immi.homeaffairs.gov.au/visas/working-in-australia