Years ago, I read an article about how therapists were helping PTSD sufferers by having them 're-write' their memories. People with PTSD had to tell about the event (or events) that caused (or perhaps was a trigger) for their PTSD episode, but they had to tell it without emotion (not just in tone, but in vocabulary choice). They didn't retell it once, but over and over (for weeks or months, if needed). In time, people could recall the memories without the same reactions. (I vaguely remember brain scans with different areas lit up in different colors, but I do not remember the details.)
When my husband's father died, I tried a version of the same idea. At every holiday (when we tended to notice his absence the most), I made everyone tell a happy story about my father-in-law. The first year was hard; we cried as much as we laughed. But every holiday got a little easier and now, many years later, there is usually a moment of quiet but no tears. And lots of happy stories.
JMG, somewhere along the way, described an occult practice of recounting your day before going to sleep, in reverse order, (IIRC) without emotion. I do it daily and have found myself letting go of stresses more easily than in the past. I don't have PTSD, but perhaps it would help you with smaller stressors.
Re: PTSD
When my husband's father died, I tried a version of the same idea. At every holiday (when we tended to notice his absence the most), I made everyone tell a happy story about my father-in-law. The first year was hard; we cried as much as we laughed. But every holiday got a little easier and now, many years later, there is usually a moment of quiet but no tears. And lots of happy stories.
JMG, somewhere along the way, described an occult practice of recounting your day before going to sleep, in reverse order, (IIRC) without emotion. I do it daily and have found myself letting go of stresses more easily than in the past. I don't have PTSD, but perhaps it would help you with smaller stressors.