After measuring the (negative) impact of social networks on my productivity and how I interacted with them, I took radical steps to reduce their usage.
I do not believe that weeks long break are a good idea, but instead reduce their daily/weekly usage.
- reduce their accessibility to not machinaly open them. for e.g do not have the application on your mobile (+ a great win against data harvesting) - reduce the social networks number (I left Facebook because it didn't bring any value to me, but kept twitter)