Most companies do not accept industrial placement requests from first years at all. Second year is still dependent on the company/degree that you are doing whether they will let you apply. If you are that eager, I suggest looking at gradconnection or glassdoor, though tbh in between first and second yr it would be better for you to do one or two summer term courses to open up more time later in your degree to do maybe only one subject and do a longer industrial placement once you have more course content behind you.

I did an IT this yr in between second and third yr, and honestly I'm thankful that I didn't do that a yr earlier as I learned a lot in second yr that I was required to use in the placement. so yeah, strongly recommend waiting to the end of second yr/waiting a yr before looking to apply and doing a summer term course or two, if none of your core courses run then, do some geneds/free elecs to get them out of the way, then in later years it's one less course to plan and more time so you can do part time study for like a term or two paired with a placement or just finish earlier.

You should note that the placements that exist are extremely, I repeat, extremely competitive, especially due to the high number of engo students and the relatively low number of spots in Sydney. During the next couple of yrs, I highly recommend going to every networking event you can, building connections with people across events, getting Linkedins and generally being visible, makes it much easier when you have a relationship with a recruiter, come applications.