Hi Lorena... I'm not too sure about CBT therapy because it didn't fit my needs but I believe it's generally a shorter-term therapy, it focuses on the here and now and your reactions to certain stimuli. It works to change your behavior and reactions to certain things by changing how you view those things. And also by exposing the person gradually to what they fear. I believe it's useful for people with phobias. That's about what I know. I don't believe CBT therapists delve into your past and deal with things such as attachment, complex trauma, and abusive situations.
TN