Joining Australian Infantry as a Rifleman?

Hey, well it sounds to me, you will have no problems at all getting into the infantry. Your a smart kid! :) But geez, if you don't want to be an infantryman or you want a different experience in the army, you may not be able to get it because you didn't finish grade 12.... What if you want to be an officer? I can't be sure, but I don't think they promote people to an officer without a uni degree or the very least, completion of year 12. I'd recommend school and keep as many doors as possible open, in case you want something more than being just a rifleman. Besides, try to make the most of school, the only reason I loved school is because I played as many extra-curricular sports and other stuff as I could. Just think, they may not let you in because of your age now, but if you keep your grades the same as they are now and finish senior year, you will be let in, with almost no questions asked lol. Hey, hope that helps and good luck with it all. Have a good one. :-)