I have to begin by saying that I am no expert. As a matter of fact, I am about as far from an expert as I could be in this area. That being said, I have come a long way over the years. Some googling could probably take you to some really great thoughts by people who are so much better at this than myself. However, maybe I can save you a little bit of time by sharing some of my rookie lessons learned so that you can push ahead on your journey.
First, as I mentioned in Intoxicated by Connectivity there was a transition that needed to happen for me before the practical strategies for disconnection would even be useful. If you are not at that place of peace and trust yet then I would urge you to stay there wrestling with those truths and praying for that kind of peace. Without it, nothing here will be of any lasting help.