It really does require a lot of discipline to stay focused nowadays. In my personal life I'm terrible at it. I wish I read more, like I did before the Internet are my life.
But at work, I HAVE to be disciplined. I start my day with 1 hour of communications catch-up, including stand-ups and slack. Then I turn off slack, and get to work. My phone is set to do not disturb automatically starting at 10am. I check messages when I'm on a break, going to the bathroom, on lunch, etc... But the messages are never allowed to interrupt me.
But at work, I HAVE to be disciplined. I start my day with 1 hour of communications catch-up, including stand-ups and slack. Then I turn off slack, and get to work. My phone is set to do not disturb automatically starting at 10am. I check messages when I'm on a break, going to the bathroom, on lunch, etc... But the messages are never allowed to interrupt me.
Works for me, at least.