I used to write a chart before where I wrote both about having good and bad days including my happy and obsessive thoughts. But I stopped because I lost track and I find it quite difficult to write about them.
In this way, I learned not to dwell too much on the bad days, but to file them away in the list.
You achieved something, my psychologist also told me to do it but I don't know why I stopped. But writing about bad moments feels kinda relief, I mean I feel like I am talking to my diary...