From this information, your performance appears to be consistent with an ATAR of at least 97 and up to 98.2. Your performance across your subjects is essentially of a high standard, with your performance in some of your subjects being more favourable than in some of your other subjects.
Mathematics Extension 1 and Mathematics Extension 2 seem to be your best-performing subjects. Because of this, it is highly likely that they will make a positive contribution to your ATAR. In maintaining your excellent performance, you should do your utmost to prepare for your Mathematics Extension 1 and Mathematics Extension 2 HSC exams.
The same can be suggested regarding your performance in Physics and Chemistry, although perhaps to a slightly lower extent. This information still indicates that both subjects are likely to make a positive contribution to your ATAR, and that you should also prepare for each subject's HSC exam to the best of your ability, which will hopefully allow you to solidify your overall performance in both subjects.
On the other hand, it seems that English Advanced is your lowest-performing subject. This does not necessarily mean that your performance in this subject is unfavourable, but rather that it is of a lower standard when compared to the rest of your subjects. You may therefore wish to consider placing additional emphasis on your preparations for your English Advanced HSC exam, which may include addressing any areas of improvement along the way.
I hope this helps!