I used to use some of them but I dropped them all before 2013 and now I am clean for over 4 years. I kept LinkedIn because I use for business contact only.
Today, I came cross this video and found quite interesting as I agree with what he says.
I always said, the social media website/app specially Facebook and Instagram are just a game. It's funny how some users write the fake status which they don't believe it themselves but other believe it and vice versa.
If you are making money or adding value to your life by using these apps, then use it otherwise don't kid yourself and just get rid of them, simply. I know it's hard in the beginning but trust me, it worth it, you are not alone.