What you do? Play games or net surfing.
Too much use of computer will affect your eye sight
At the maximum you can use one hour.
Not more than this. You should play & take part in move about activity.
You should give more time to your study. Other wise you will loose your health, grades & your good will in the class & in the family.
Too much of every thing is bad.
Time is money it will never come back.