I got C+ and a D+ in my year 11 exams and 42 in English this year. Even though working hard in year 11 pays off, it is not a complete pre-requisite for you to do well in year 12. Do ALOT of practice, omg i can't emphasize this point more. I forced myself to do an essay a day for the term 2 breaks and I think it payed off. Don't be discouraged if you don't get immediate results, its a progressive thing. Plus, please, please don't thing that you have to write A+ essays in one hour. Work on quality, then get the time down, trust me, it's all about practice. Write about things you like or intrigue you, when i look back, i realize that i was inspired most by reading books and other people's pieces and a want to write better than them. Read ALOT, like I said, books, articles, magazines, newspapers, playboy...e.t.c. .
Really enjoy your work, in Section B i tried to be as creative as possible, i wrote a piece on cocaine abuse, perspective of a toy and a poem om immigration. Don't underestimate the power of your own story, expository reflections provide an amazing insight and sound REAL, it may sound silly but my teacher(examiner) told me that examiners love real stories because you are really grasping the essence of the task.
Treat Language analysis as a puzzle, think of it as an insight into the writer's mind and decoding this code that allows them to be influential through words, make it a game. With Section A, read, read, and read more. Try using mindmaps, they work really well!!, a quick way to plan is by aking a 5 min. mind map on the question and numbering each idea to see which paragraph you want to include it in. Channel your inner philosopher and take ideas from peculiar things so you stand out, just make sure it make sense!
And lastly try to enjoy it,i went from hating the subject to thinking about picking it as a breadth in uni, so keep your mind open, and go smash it!!