how do u do it? well seeing as most ppl in my school got that last year, all u have to do is sit around the playground during ur classes during the last weeks of school, dont take ur internal rankings seriously, do subjects you hate, go to parties throughout the hsc, making sure u arrive hungover to your exams, dont have any belief or expectations of yourself and dont encourage those around you to go for their best. thats a sure fire way of achieve below 50! it can be done!!