Hi. Once, my first acupuncturist told me,"When you feel like you are going to explode, expand around it." I had no idea what she was talking about for two years........ For me, it had to do with learning to breath. I was always holding my breath and being stiff and guarded (in my body and head) while "doing life".
Programming positive thoughts-visualizations and breathing into myself during the moments of clear thought soon led to me being more and more able to shut off the bad stuff sooner and sooner. I don't know if it ever goes away away.