Hey, there!!! I know it might seem bad at the moment but keep in mind it is just your very first assessment task. Trust me, I had a meltdown after my first Extension 2 Maths task and I came the last rank. Super demoralising. But honestly, there's no point in moping around because it isn't going to change anything. Any feelings you have at the moment, are still super valid, and you should take some time to process/accept them.
However, what isn't going to change is that you're still aiming to get the highest rank possible. That's what I did. Rather than focusing on "I'm not getting first rank, ever", I focused on turning around my Extension 2 study so I can push my marks highly as possible. After 3 assessment tasks later, I ended up with the first rank, which; I was VERY shocked by but also impressed at. You'd be surprised at the complacency of some students and how inconsistent their marks can be (unless you're in a selective school). Even if you get 2nd or 3rd rank, it's still fine, and that means you just need to achieve as highly as possible in the final HSC exam. A score of 92 or 93 is still VERY much achievable with those ranks, it's all up to you.
I first would start by taking some time to reflect on your result. I would ask the teachers for specific areas I could've worked on/improved for next time. Taking in feedback is REALLY essential for English courses, and it should be done on a regular basis if you really want to improve. Try to incorporate your teacher's feedback into your future writing practices, always keeping it in mind.
But also take time to focus on how YOU felt when preparing for your task. If it was an exam, did you feel nervous/unconfident on the day? Were there questions you couldn't do or struggled with? How was your time management? And how'd you feel after the exam? If it was a hand-in task, ask how did you feel about it when you prepared for it? Were you confident in getting a good score? Did you read the marking criteria and address all the outcomes they were looking for? Did you ask your teacher for feedback/tips beforehand? These are just example questions, but you should reflect on your process and decide for yourself how you could've improve for next time.
I hope this first task doesn't put you down so much!!! What matters now is that you work really hard to achieve high as possible for the next tw tasks and try to smash the Trials. The Trial exams are generally when ranks shift the most due to the nature of the exams. I wish you good luck for your HSC and I know you can do this!