I love Instagram. My friends always post all kinds of food there and it gives me ideas of what I should eat next.
That said, though, I'm on Facebook all the time. I don't update stuff or stalk people, it's because I use FB messenger to contact my family overseas and I am a very clingy family member. I'm on video call with my mom and siblings at least for 8hrs when I'm not working or at school.
Of course, there's CC too. Though I don't get to log on as often as I would like.
Lastly, it's too early for you to go to bed, Zero. Already too early.