Hi Kimba, I do journal things on SI. I wrote something 24 hours after D-Day too via email, printed it and it sits in my room. It is so raw and painful to read. I would write myself notes in my Draft folder too and just keep adding to it.
Overall, I find writing things out on SI to other posters very helpful ie: triggers, bad days, good days. I also have a place on my BB when the mood strikes me and I need to write it out. It's a release for me.
I have also written my H 3 letters. I re-read them today. Wow. The first one I really blasted him! I was more sad in #2 written one month later and by #3 written 3 months after D-day I was questioning how much he was getting from IC.
So, while I don't have one journal for all my thoughts, I have written a lot since D-Day.