Christmas break is a great legitimate time to allow your brain to have some rest from the excessive stimulation that online brings to our lives and process all information you've been feeding your brain with over the past months.
Giving up my smartphone was the first step, and several weeks ago I decided to go deeper and declutter my home... I took a radical step and got rid of all tech devices at home, either moving them into my office (they're productivity tools after all, aren't they?) or selling them.
If the loneliness stems from being over plugged-in to the digital world - then how about reducing the time you spend online. Put those digital devices aside. Come on. Not forever. Simply, unplug now and then.