Establish goals and work towards it
Stick to the goals, tweaking minute changes only according to situations that arise at various points of time.
Start off with a small time block say 25 minutes. Focus and do not deviate in that time. Give a 5-minute break and then study again for the next 25 minutes again. You can increase these time blocks as you go on through your semester.
TO GET HIGHER GRADES
Give more of your time and attention to weak areas and you find that your exam grades will automatically move up.
I) Time Management for getting Organized
II) No Multitasking
III) Do not study at the cost of your sleep
IV) Set a schedule
V) Take notes
VI) Ask questions
VII) Study in a group
VIII) Facing the mistakes with courage and finding the methods to correct them
IX) Do not take much help from the parents
X) They know that life is much more than school, but together with it understand how important is the school