Apart from the meds I take daily, when I'm struggling/triggered, I have to distract myself away from what's in my mind until my emotions slowly [and I do mean slowly] return to a more manageable/realistic zone. Solitude, the internet, and working on my music projects are the only things that help me in that area, but it's all very hit and miss.

PC, I find is a good means of support too, Fuzzy.