Get a folder for each subject. Make sure they are really big but don't fill them all the way up so they are easy to use. Keep all your notes and exercises espesh for maths, I found it good if i was stuck to have examples of every posible question.
Physics was the only example I could think of where it would be used outside of the maths class room.
Basic calculus is very easy and should be introduced in year 10.
Come on, to the majority of people the hardest subjects are the best scaling.
You have to remove the talented people with a certain flair or passion for a subject like yourself.
You have to enjoy it and want to do it.
If you force yourself to do 4 hours a day you wont take much of it in and you will burn out quickly.
Make it your goal to study everyday, don't put a time limit on it just sit down and keep going till you want to do somthing else.
Only push through...