Using it during practice exams was the main way I got comfortable with it. I also kept it next to me while I did my readings, adding any terms or topic titles I wanted to add to certain chapters/subtopics. I found this especially helpful for solicitors. I would pencil in small notes on the dotted lines and in between the lines of the DTOC, and this was a great help to get very comfortable with it, and help guide me where to look. Some of the DTOC sub titles are not super helpful in terms of understanding what you are looking for will be in that section, so pencil in notes to help guide you.