Daily Journal?

I haven't fully utilised this blog as my daily journal because I am too lazy to log in and write stories. Even though I already have so many of them in my head. It just lingers there, and I can't sit in front of my laptop and write. But I want to start writing again, write something meaningful, and look back and say, "Oh, I have been through this before." I do journaling in a physical book, but I am not that disciplined either. Most of my journals have blank pages. 

I wonder: how do you have motivation and be so disciplined about journaling? Is there any way that I can be that motivated and keep on writing? 

Photo credit: Freerange