@alwaysrose123 I would suggest going through with your year 12 / uni degree. I am not sure where it is
stated but somewhere it says that if you have a Uni Degree it will also count as its obviously high than year 12. If you did your year 12 in Australia then you can get your reports from the education department. Thats what I did as I didn't have copies.
Its very early days yet. If you do get selected then you need to make sure you have a low enough Case Number. There have been a few people around the last few years that although have been selected have had high case numbers and have not gone current.
@EmilyW has a nice spreadsheet on dropbox that can show you the total amount of cases that went current over the last few years for Oceanic.
Cheers