Not really well at all. I had a crappy teacher though, so I didn't really understand how to write the essays and what to put in them, and we never did any analytical commentaries. I ended up getting 56% in my unit 2 exam because I just didn't get it, and you only learn the easy half of metalanguage in year 11 as well. Then in my first SAC in year 12, I got the highest mark in the cohort (people get 50's at our school so that's pretty decent), and that was clearly nothing to do with year 11.
My tip, get ahead and learn the metalanguage in the study design before the year starts, especially cohesion and coherence, and information flow ew. And make sure, when you complete an area of study that you have a bank of essay paragraphs with relevant examples relating to that area of study. For example, in formal language you could have a paragraph on: obfuscation (managerial language), manipulation, standard english, jargon, euphemisms etc etc