I'm pretty much like GreenMoss. I even tried to use cryptograms, which was just too much trouble even for me, honestly.
AboutToCrash: In my case I don't know if it made me feel better as I get too worried and paranoid about someone reading it. I agree with you, but I see myself in so many situations where I need to write down things right in that moment either to let it out or because I know I won't remember it later, so it sucks a bit.
There's also something fulfiling about having a journal and writing regularly, I can't really explan, though. Maybe it's the feeling of getting a grip at something about myself.