Working through the trauma that caused PTSD is a long process, and requires expert help. There is no cure, no. But with time there is life.

IDK if it's worth it to you, to embark through the dark stuff if you can find a life now...to some extent? It takes a long time... I was injured in 1986 and yet I still battle the PTSD. I know Vietnam war vets who still battle the PTSD. My dad died at age 84 and was still battling "combat fatigue--shell shock" and he wasn't even in the middle of it all....
Of course, my own story is the opposition to my healing STILL surveil me, still threaten me etc., so in a sense the trauma changed from the near death injury and battling the physical chronicity of it, to battling the opposition who continue to stir the pot.

You can have a life where dealing with the trauma is not the first item of the day.