Off topic a little but I stop most of my messaging app to notify me. And my life is so much more peaceful.
I told everyone when they connect with me on any messaging app that it'll take time for me to answer. I'll read it when I remember to read it, which I do like once or twice a day.
They adapt to that and if it's really important they'll call.
While we're off topic, you should also consider grey-scaling your phone most of the time, only turning it back to color when needed. A lot of psychological trickery goes into icon and notification color to catch you eye, and it's much less interesting in drab grey