I think you have the idea.... you cannot go forward without first facing your past fears. PTSD feeds upon fear, past, present or future. Negative emotion creates fear, whether you like it or not, that what it does. If you have negative emotion bottled within from past pain you must face that emotion, you must deal with it head on, you must find resolution with that emotion to remove it, quash it or accept it so it can change to a more neutral emotion (ie. I must accept this because it cannot be changed now, I either accept it or try and keep fighting it to go away).

I think you know now.... the CPN was an idiot. Lovely as they may off been, lovely is not what you need with trauma, you need empathetic + pushy = you healed. That is what you need in any therapy or related person, those two factors, not sympathy, not understanding, empathy + pushy. You need someone who will push you hard, even when you think your broken, they need to be pushing you until you break through a negative emotion, then they empathise to support you for your hard work achieved. Recover, repeat process.