RecruitingBehavioural interventionEvaluating Evidenced Based Options for PTSD TreatmentThis study will look at: How practical it is to offer another round of proven therapy. How effective different therapy options are for people who didn't respond to the first treatment. The goal is to improve personalized care by: Identifying factors that might predict how someone will respond to a second treatment. Creating a simple tool to spot people who might not respond to treatment early, so they can start a different option sooner. The findings will help improve PTSD care by offering better follow-up treatments and matching patients with the approach that works best for them.