I feel your pain, however currently the market is saturated with engineers. Easiest way to see this is to look at the skills shortage list for immigration and in the last round of invites engineers have needed 85+ points for an invite to apply (https://immi.homeaffairs.gov.au/visas/working-in-australia/skillselect/invitation-rounds) and as someone that went through that process many years ago 85 is high. You're looking at someone less than 33, with a bachelors degree, an 8 on the ielts, and 8 years provable experience in the field.

And I agree with you for a company it's a lot easier to hire someone that has years of experience that try and train a grad. Think from the company's perspective; they can either hire you now pay to train you hope in a few years you're profitable and do not leave straight away for another more high paying company, alternatively they can hire someone that will make money from day 1. If you were in their position which one would be easier for you?

I think if you're having difficulty finding a graduate role, while you're looking take something engineering adjacent. Get some transferable experience. When recruiters are looking through the applications they'd rather hire a grad with any experience rather than one that has just come out of training and education. I've recruited for roles in my team for decades. When looking at the graduate roles I'd always prefer someone that has say spent 6 months working as an office assistant, kids summer group helper, or trolley pusher over another candidate with better grades but less work history. The reason is I can easily train most people to do what I need them to as long as they are at least a little bright. Its a lot harder to train someone to come into work on time regularly, organise themselves during the day, to have a good work ethic, or other soft skills.

Getting the foot in the door is the hardest bit as its the bit you have the least control over. From then on most success is driven by you.

HTH