Take up first the subject you most dislike; once you have done this, the rest of your work will be easy.
Do not hesitate to ask your teacher or your cleverer companions, things you do not grasp clearly. Never leave difficulties unanswered, as this will put into greater difficulties, later
To make sure that you have understood something thoroughly, use these ‘ticks’::-
(a) pretend that you are explaining the lesson to another, see if you can do it well.
(b) make yourself your own teacher and question yourself and answer honestly (don’t cheat!)
Do not continue working when you are tired: walk around the garden, or talk to a friend or have some other pleasant interruption, but only long enough to refresh you, to finish your lesson, and not waste time.
Get enough exercise every day, it keeps the mind fresh
Do not cut down necessary sleep in order to study, it will hurt you later on.
Lastly pray often to all-wise and all-knowing god, to help you make progress in your studies.