How to balance between studying and gaming?


I am a game keener. Recently, I am crazy about an interesting game called <a href=”https://cubes2048.com”>cubes 2048</a>. It is an excellent snake game where I can compete with other players to eat food. I find it is difficult to balance between studying and gaming, so my score decrease a little bit. My mom is so angry. Can someone give me some effective ways?