This setup will cause you to be less responsive on chats and email, but that’s sort of the point. Your phone shouldn’t dictate to you what you focus your attention on, and the behavior it cultivates in keeping you “always ready” is unhealthy and spills over into parts of our lives that aren’t serving us well.

Although I don't agree with everything, this the sanest article that gives you tips about phone addiction, without going into extremes. I'm already doing a lot of these tips, I just need to revise my notification settings.