I do not know the extent of you disorder. I myself suffer from chronic PTSD. I don't know if you use any alcohol at this stage. I used alcohol for close to 18years as a crutch.
I hear what you say about the therapists. I felt the same. What I found was that talking to someone who have been there, helps a little more than a therapist. I was fortunate in the fact that my wife did a lot of research into the problem to better understand my condition. It helps if you have somebody that is very supportive.
Getting back to the Night Terrors. I used to get them bad. There were a time that I did not sleep for six months. With the cocktail of Valium, Anafaril and Stemitil, I used to sleep at most 1hr a day.
What I had to learn the hard way, and through the years, will hopefully benefit you. I learnt what triggers these attacks. The two things that triggered it the most was my finances and secondly, what if I could not afford a drink the next day.
It is crucial to identify the triggers. I still have my anxiety attacks and terror attacks, but it gets easier to deal with it in time. It is just to learn to identify what triggered it, try and make peace with it, and it will start getting better. I myself sleep like a baby nowadays, though every so often, there is a little relapse.
You should realize that it something that never heals. But like an amputee learns to cope with it, we have to learn new coping skills.
Please do get back to me on this. There are so much more that I can share with you. I have been suffering from PTSD since 1992. It took me close to 18years to find a solution, but I had nobody to help, except my wife as support.
I do not know you, but I carry a prayer for you. Get back to me with a few honest answers on what you use. You can read my Hub on how I recovered from alcohol abuse. That was my journey with alcohol and PTSD.
Take care and may God be with you...