Gina, I haven’t used a cbt or DBT workbook although years, decades ago I did use a bipolar workbook. It was for my eyes only. And as such I was brutally honest and it was eye opening. I had had the bipolar dx for years but didn’t believe it. I thought it was just the ptsd. I did have a therapist but she was for domestic abuse and I just worked on that aspect and the ptsd with her. The workbook was for me and was very helpful.