It would be a good idea to provide information such as the number of band 6's achieved at your school in each of your subjects and/or your school rank, as it can contribute to more accurate ATAR estimates.
Given this information, your current performance seems consistent with an ATAR in the low 80s range. More specifically, that would be an ATAR between 82 and 84.
Your position appears most favourable in Information Processes and Technology as well as Mathematics Advanced. This means that out of your subjects, these two subjects are likely to make the best contribution towards your ATAR. Because of this, you should do your utmost to maintain (and if possible, improve) your rank in each subject.
The same can be suggested, although to a lesser extent, regarding your performance in Engineering Studies. While your position in this subject does not appear unfavourable, there does seem to be room for improvement. As such, if you can improve your performance in this subject, it will likely make a greater contribution towards your ATAR, which consequently increases your chances of a higher ATAR.
On the other hand, English Advanced and Physics are your lowest-performing subjects, meaning that out of your subjects, the greatest improvement is required in these two subjects. At this stage, it would be reasonable to suggest that these two subjects may be preventing you from being on track with a higher ATAR. Based on this, any rank improvement in both subjects would be beneficial, bringing you closer to your ATAR goal.
I hope this helps!
