Writing is easier for some than others, and journaling doesn’t bless everyone.  However, a huge number of people who thought it would not help them and they wouldn’t like it have found it is an awesome help.  It might help if you think of it as your God blog.  Tell Him what’s going on, what you wonder, need, hate, love, and want.  He is interested in the hairs on your head, so He surely cares about this other stuff.  Journaling works best for me when I’m trying to solve a big problem.  But there have been times when it was my routine way of interacting with God.  No, I make no attempt to be absolutely consistent in how I relate to God, but I am very disciplined in spending personal time with Him every day.  I need Him, and I want my actions to show that.  So – journal or prayer blog – I don’t think it matters what you call it.  But if you try it, it might just help you.