When I first went to therapy, I had looked at the NHS choices website (for info, although I was going privately), and as CBT was recommended for most things, I assumed we would do CBT, and this is what I requested from my T. I was a bit discombobulated when he said that standard CBT was unlikely to work for me, and I would need something more in depth. Schema therapy is based on CBT and includes a lot of CBT, but also a lot of other techniques from gestalt, and it's a long term approach. On the NHS I think CBT is usually 6 - 12 sessions. My T knew that wouldn't be enough - and now I understand that he was right.