CaCl2.H20's activites

Any tips on how to stop addiction on manga .i only need to stop for 2 months for my exam because i need to study and i have failed 2 times because of my mobile addiction and fear of failing.i tend to not open books if i am scared.
I am person who would complete atleast 100 chapters in one go.
Pls help me!!!

-System 
-System Administrator
-Level System/Ranking System  
-Game Elements, Status Window
-Artificial Intelligence
-Special Ability
-Mind Reading 
-Clairvoyance 
-Premonition
-Super Powers

-Female Protagonist