Well, if you have read through the other threads-you could know that there is a lot of other people like you who are also as anxious and nervous as you are. The important thing to remember is you are not alone, and as long as you put in consistent effort, EVALUATE ALL YOUR MISTAKES and keep trying hard and never ever give up-you can maximise your potential to reach your desired ATAR goal.
Remember, try to compete against yourself, not with others When you have achieved your Personal Best, then you will have no regrets
Check out my responses in the threads below to maximise your marks for Advanced English:
http://community.boredofstudies.org/showthread.php?t=315916&p=6480049#post6480049 (my top tips for doing well in English Advanced)
http://community.boredofstudies.org/showthread.php?t=315158&p=6471238#post6471238 (features of a stellar essay)
On how to achieve consistent study patterns in senior years:
http://community.boredofstudies.org/showthread.php?t=315886&p=6479509#post6479509 (my top tips on how to not burn out)
http://community.boredofstudies.org/showthread.php?t=315131&p=6471248#post6471248 (my top tips on the best way to study during the term)
http://community.boredofstudies.org/showthread.php?t=315658&p=6476770#post6476770 (How much you should study in the holidays-applicable to preliminary and HSC years)
In this summer holiday, you should focus on making sure you have a prepared psychological mindset for senior year studies, you must have a much tougher mindset to prepare you not just for the much greater academic rigours of the senior years, but also a corresponding increase of expectations-i.e. taking more responsibility for your self-learning, more proactive role in asking questions when you don't understand instead of blaming the teacher for not teaching the syllabus content thoroughly enough.
Another thing is you need to make sure you have consistent performance in all your subjects-consistency is very important-both in your academic performance(I am talking about at optimal levels) as well as consistency in your study routine, learning methods and sleeping patterns-don't study 24/7 because you will wreck your body and by then your atar will become meaningless if you destroy your health-take care of yourself, do relax a bit in the holidays-you need enough relaxation to get you to keep working very hard for the next two years-and I think if you prepare your psychological mindset over the holidays, it will help you even more than pure attaining academic knowledge for year 11. Essentially, make sure to keep healthy-a healthy body allows you to have good results. Construct goals and be prepared to stick to it (long term and short term ones).
If you have any questions about studying in senior years-you are welcome to pm me-best wishes for achieving brilliant results in the next two years. Remember, any ATAR aim is possible if you believe it is and you take actions that help you achieve it-work hard and never give up and you will excel