studying smarter rather than harder is much more effective, more timely and you become more efficient in your learning.
Having the right resources will also help too.
Contact synergytutors@gmail.com if you would like any tips, advice or would like a sample of any notes we have.
tsfx (The School For Excellence) a private education institution suggests that a HSC student should be completing 21 hours of study out side of school a week. That 4 hours should be done a day and 8 full study on one of the weekend days. http://www.mediafire.com/?9w0gz60gqdwmga5