I've kept a journal for a long time. I started my first journal when I was ten or eleven, and I've written on a relatively consistent basis since then.
I'm really not sure why I keep a journal. There is something incredibly therapeutic about it. And at the same time it satisfies my desire to create.
And then again, it's just nice to be able to write in a book about stuff. And the journal is an incredible tool to document your growth and maturity and what God has done in your life.
Why do you journal? I'm interested in hearing your thoughts.