I went to a two day course offered by a LCSW and I didn't feel confident in what I learned, so I studied as much as I could, but became overwhelmed with how to study, what to study, and what strategies I could use for wrong answers. I didn't pass the first time. I heard about TDC from a co-worker (who hasn't tried it herself yet ironically) and thought I would give it a try. The step by step guide made it easy. I had to change my test date due to a family issue and needed an extension and they didn't give me any trouble about it. I had an AMAZING coach.