I generally "journal" alongside my mood charts. It's not even close to an eloquent diary. I like to use it as a place to jot down reminders and thoughts about what I want to discuss with my therapist next time. Some days I don't even write anything at all. Usually I write something whenever I feel that the mood chart alone doesn't quite capture how I'm doing or what I'm thinking. Sometimes it's just a few words about my mood, sometimes it's more.

I guess what I'm trying to say is, don't try to force anything. If you have something on your mind, write it down. If not, then don't write that day. If it's just a few disjointed words, that's fine too. I felt self-conscious when I first started doing it but that went away over time. At first I used to avoid words like "I" and "me" when writing to make it a little easier. It was kind of like notes taken about me by an outsider. That made me feel less stupid about it.