Every now and then I run across a story like this where someone is overburdened with communication and technology and wants to give it all up for a fixed time to cleanse themselves from the toxicity of modern life. Then they come back renewed, with new energy to conquer it all, and tell everyone how great it is and that everyone should give solitary confinement or meditation a serious attempt. Then a few months later, they get back into their old overloaded lifestyle of stress and constant work.
No, you don't need to give it all up for a month or year to find yourself. This is reaching out to the other extreme because you hope to end up in the center eventually. How about just slowly moving to the center from where you are? Get rid of the email+text features from you cellphone. Billions of people live perfectly fine without it. Keep GPS/web on your phone but only use when needed. Feel free to check your email whenever you have a few minutes but don't reply to it immediately. Shape your routine so you get to do what's important and not just what's urgent.
When not doing something productive or relaxing on the computer, step away. Go kayaking, hiking, camping, or jogging. Go to the movies, mall, museum, theater, art show, or a theme park. Get a backyard project, build something in real life, get your hands dirty. And while you do all of this, make adequate use of the technology available to you without feeling crushed under it. The purpose of technology is to solve real-life problems. It is not to replace real-life with a 24/7 stream of stress. People are good in general. Don't ignore them for a month because they contact you too much using different mediums. Spend more time with them in person, even if they annoy you. And use your knowledge of technology to enrich your and their lives. What good is 15 years of computer knowledge if you renounce it instead of sharing it with others?
Connectivity is not bad. What is bad is not knowing what form of communication to give more value to. Figure out your communication medium hierarchy and live by it. Mine goes:
Face-2-Face > Video chat > Phone > Email > Message boards > Social Networks