I did CBT way back when it was barely a "thing"; I have found it very useful in my relationships over the span of a couple of decades. It's been very helpful for co-dependency, anxiety, addiction.

The only caveat that I would add is that it was not helpful for me with regard to my DID diagnosis. In fact, my dissociation was not even noted. So I am back in therapy, with CBT/DBT skills intact and still doing a whole lot of work.