Lack of Social Media

I have a Facebook, but even that seems to be getting old fashioned. I don't have a Twitter nor a Tumblr nor an Instagram nor any other form of social media. I am a college student and it seems that the world revolves around all these social media sites and I feel like I'm being left out in the dust. Even most major companies have tried to become technologically savvy by having their own Facebook pages and Twitter accounts that people can like and tweet about. Will me not participating in this social media craze give me the same feeling of being left behind from when I stopped watching TV when I was young?