Time is indeed of great essence and I must admit that somehow, the way you value time inspired me to do as well and make every single time to be spent more on crucial things. I'm still young and yes, I sometimes spend several minutes to an hour or more during the day just playing some games in my phone and scrolling across social medias. I can't take back those times but I can still improve my performance.
I've never been one to use much time to play games on computers and have never done it on my phone. I guess I've always found other things to do in the real world to occupy myself. We're all different though, and if that make you happy then there's nothing wrong with it.