Essentially, more specific information regarding the performance of your school in each of your subjects could contribute to more accurate estimates. However, from this information, your performance appears to be consistent with an ATAR between 96-97. You have evidently performed at a consistently high standard across your subjects, which places you in a comfortable position as you approach your HSC exams. This indicates that the study strategy that you have used throughout year 12 has been effective, meaning that you should continue to use this strategy as you prepare for your HSC exams, allowing you to hopefully replicate this standard and maximise your ATAR.
The only subject that may be preventing you from reaching your full potential is Latin Continuers, since it appears to be your lowest-performing subject given your position in it compared to your position in the rest of your subjects. Because of this, you may wish to consider placing additional emphasis on your preparations for your Latin Continuers HSC exam, enabling you to improve your overall performance in this subject. Coupled with the fact that you are taking 11 units (meaning that Mathematics Extension 1 could count towards your ATAR, making 1 unit of Latin Continuers count towards your ATAR instead of 2), you will maximise your chances of achieving your ATAR goal.
I hope this helps!