The Pomodoro technique is one of the most popular learning technique in the world. To do the technique you need to turn off all notifications and set a timer to 25 minutes. Then you focus 100% on the work. When the bell rings after 25 minutes you can rest for about 10 minutes, watch your favorite series, eat some food or do whatever motivates you. Then continue this cycle.
If you want to know more about the Pomodoro technique click this link: https://youtu.be/dTQDaUQ9MAU