I was pretty much the same way before steemit. I would just scroll facebook and maybe share the occasional article but I would never really post anything about myself. I can't say that I post a whole lot on steemit either with only about 600 posts (including comments) since last July but I'm certainly addicted to steemit and you start to get a lot of ideas for posts after a while. Soon you will have too many post ideas and not enough time to make the posts.