Make a time table &give proper time for every subject. But more to Urdu.
If one hour is for the rest of the subjects two hours for Urdu .
Leave all other hobbies, games, computer, mobile & TV.
Only give time to your study.
Study will take to the palace of success.
Rest of the things are just waste of time. You will get nothing.
Pray 5 times & read Quran with translation daily & pray for yourself.