Given this information, your current performance seems consistent with an ATAR in the low to mid-80s range. More specifically, that would be an ATAR between 83 and 85.5.
Food Technology and Geography are your best-performing subjects. This is especially true for Food Technology, where your rank is optimal, meaning that the moderation process would work in your favour if you were to also achieve the highest HSC exam mark in your cohort. Both subjects are likely to make positive contributions to your ATAR and it is therefore important to thoroughly prepare for their HSC exam, allowing you to solidify your overall performance in both.
The same can be suggested about your position in Earth and Environmental Science, although perhaps to a slightly lesser extent. This means that while this subject may make a positive contribution to your ATAR, there may be areas of improvement that you can address as part of your preparations for your EES HSC exam. Doing so will allow you to improve your overall performance, and consequently this subject's contribution to your ATAR.
On the other hand, English Standard as well as Design and Technology are your lowest-performing subjects, and are likely the subjects that are preventing you from being on track with a higher ATAR at this stage. Based on this, you may wish to consider placing a greater emphasis on your preparations for their HSC exam, because favourable HSC exam performance (which would improve your overall performance), would result in a greater contribution to your ATAR from these subjects and reduce the chances of them hindering your progress towards a higher ATAR.
I hope this helps!