I wonder what modality your T uses? I agree with Jessica, that it can take a long time, and also with chicken noodle that it's good to talk about other stuff too. I actually think it might be possible to have very helpful therapy without talking about any of the traumatic stuff, and also without using any techniques except for conversation. It sounds to me like your T doesn't believe that simply talking can help, as you said he has tried loads of different techniques.