I see. I don't think a crisis centre can do anything else. You can contact MIND and self refer yourself for counceling. It's not therapy but it might be helpful. If you are in the IAPT at the moment, you have the right to cancel your therapy, go to MIND and if you wish go back to IAPT. That is what happened to me and after seeing a few people I think I maybe finally found a good therapist. Also If the waiting list for mind is too long your IAPT can refer you for counceling at lower prises (10-15£ a session).
You can also go to the Mental health team in the closes hospital and discuss it with them, or consult yourself with yours or another doctor.

I think I understand how you feel. I can't say I know how you feel.

He frustrates me, mostly by telling me to think in ways that just don't make any sense. - Is he suppose to tell you how to think? I can't change the way I feel by changing the way I think. This would be like lying to myself or be delusional. It will mean that I go against myself. Telling myself I feel happy when I feel like **** only does more damage on me by making me feel guilty for trying to be happy not managing it.

Is PTSD therapy the same one as for C-PTSD?

Also mental illness do they think you have? To me it was explained that i don't have mental illness and that mental illness are the disorders like schizophrenia.