Still possible to get 80+ ATAR?

Alright so basically I just got my English Language results back for AOS2 unit 3 and got a 41%… I also got a 50% for my first SAC and was very upset when I got these results.

Not to mention my chemistry SAC I also got 50% and I just had mixed feelings because I thought I did well and was pretty knowledgeable in the topic. For my other subjects I’m not doing so bad in, my goal is to hit a 40+ study score in PE and I’m really confident in this subject, my SAC scores were 78% and 92% for unit 3 and still have one more SAC left. For biology I got 71% (which I thought I did the worst in) and I’m still waiting for the results for my next SAC.

As well I got my methods SAC coming up this Thursday and I honestly just feel cooked because I still feel like I’m behind cause I took a 1 and a half week vacation to Philippines at the start of this term.

Is there any tips for improving on my timing in SACs because this is what I struggled most with, when time is very limited I have a lot of trouble of thinking how to articulate myself better and linking ideas together in a more coherent way.

(Please tell me I’m not cooked)