DBT skills are great for emotion regulation, distress tolerance and etc. These will be the coping skills you use while working on your trauma. it may be 'common sense', but to have the be truly effective they need to be practiced regularly. I always talk about how I feel like I've rifled through all the coping skills I know, but they don't seem to be working (in some situations). When I mention that to my therapist, I also get the whole 'you have to keep practicing them'. The only reason I agree with this is because before the trauma that caused the PTSD to explode, I was practicing them. But, even then I still needed to practice them to ensure and/or increase efficacy. It's not about just doing the act of the skill, it's about truly immersing yourself into the behaviour. Physiologically when we practice breathing techniques and etc, our bodies have no choice but to change. It's been a b*tch, and sometimes I have to try a few different techniques, or even the same ones in a different order, but something eventually works. This morning was hard, but short of popping meds to numb the stress...coping skills are the way to go.