My stutter was also caused because of complex trauma. Every day I imagine how different my life would be if I hadn't experienced those things. Life is not much different now, in fact I'd say it's worse. But I've finally identified what exactly caused my stutter, my social anxiety and the symptoms of c-PTSD that I have... among many other things that have shaped my personality until today. It's not your fault. Please, remember that always. We didn't choose to live these lives and we don't deserve any of what's happening to us. Stay strong.