I've been mostly fine with my method because every 4 Pomodoro I take a long 30 minute break. Also, not every 5 minute sessions results in messages I need to read and respond to, so those are essentially breaks.

Getting stuff done is remarkably soothing.

I know that sounds kind of sad, but escaping the distractions and actually doing something is such a difficult task with the constant barrage of communication that I truly value it. It gives respite.

"A change is as good as a rest"