That's my problem. Three screen setup. I have three browser instances open.
Instance 1: YouTube. (Left screen)
Instance 2: Gaming wiki's and info for the game I'm currently playing. (Right screen)
Instance 3. Online courses and study materials. (Right screen. I swap between instance 2 and 3 based on what in currently doing on my main monitor).
I'll constantly delay or forget to study just because it's not the currently opened in the foreground.