I found a course of pure CBT more harmful than no therapy at all. It didn't help with my core issues (which are too deep-seated and complicated for short-term CBT), and it made me frustrated that the person who was supposed to be helping me was clearly trying to administer some technique instead of listening to me like human being. Doing worksheets and stuff also made me increasingly self-critical because I couldn't understand why I was feeling worse if I was doing everything I was "supposed" to. I don't know if it would matter very much if I were working on X thing instead of Y thing, but I have no interest in finding out.

That said, maybe you'll get lucky and get assigned to a therapist who has the warmth and skills to give you something therapeutically beneficial in spite of the fact that they're supposed to be doing a course of CBT. You may not have too much to lose by going to an initial meeting and sharing your concerns about what happened last time.