If you want to write, stay off of social media. There is a fallacy that people keep repeating about writers and communicators: you have to be everywhere.
You can’t be reacting and writing at the same time. If you mean to write, you can’t be responding to everything happening on Facebook. Multi-tasking is a myth. Either you create or react. But you can’t do both. You have to make a choice.
Social media is stalling you from doing the real work that you are supposed to do. Cut back on the TV shows and blogrolls you check everyday. Purge your activities. Get to work.