I'm going to give it a go with the old pencil / paper. Hopefully, if it works and then fizzles away, it'll fizzle because i've gained the benefit. Six months tho - might be tough.
I've tried it a few times when I've been in periods of relative depression, either with the paper 5 minute journal or with the app of the same name. The habit lasts for a week and then fades away as I start to get engaged in life gain. Maybe that would have happened without the journaling, but it's such a low cost exercise and it feels like it makes a difference.
Yes, it does feel that way for me too. Thanks for sharing!