I've always journaled in some fashion - I had a paper diary from about second grade through high school, and then got my LiveJournal account in college and have maintained it or my Dreamwidth since then, so 21 years of online/digital journaling.

I mentioned in a previous question the BuzzFeed post about bullet journaling for mental health and I thought it would be an interesting experiment, so I gave it a try and found I liked it. It's been several years of experimenting with layout and decoration (it can't be too plain but I don't want to spend three days setting up one month's worth) but I'm mostly at a point I'm happy with now.