I like the issue of journals and what to do with them. I have similar problems with what to do with old journals, but for now it is too much for me to figure out.

I do keep separate journals for poetry and creativity, then one for Buddhism, and one general ongoing one for just what I call self-analysis.

I tried a system using my computer for a while. It was very organized and color coded, with different areas for different concerns. That way it was both dated but also kept separate according to topic.

The only reason I stopped is that I like feeling the pen in my hand and that connection to the paper. In the past when more organized I would write with different colored inks so that different topics could easily be found.