Getting into USYD Sem 2 Applicant

So I’m in my senior year of high school (giving my finals next week for IB Diploma) and I already applied for semester 2 entry (Domestic student as I was born in Sydney and have Australian citizenship but I don’t live in Sydney anymore) and I’m lowkey scared on whether or not I’ll get in because of the competition. I am working on getting the equivalent of the guaranteed rank for my course but the admission rate is scaring me and I’m not too sure if I’ll even get in, so I think I’m just looking for advice to calm my nerves atp idk

Also what will the rough course structure look like as I’m entering in semester 2?