when i stopped si-ing i told myself i wanted to see if it was really working for me, so i would try not to use it unless i felt i had to. i realised that while the urge to si was really strong, the purpose of si for me was to deal with my emotions, and i wasn't even feeling my emotions, i was skipping straight to feeling overwhelmed with the urge to si. the thoughts/feelings/urges that go along with si are difficult to ignore, but if you slow down and figure out where they are coming from then it can get easier to identify what you might be feeling and what can help.
i couldn't promise myself to quit, or to use specific coping skills, but i could try and help myself get what i thought i needed out of si from other places, and the si urges got much easier to deal with.
in retrospect, are there coping methods that you now realize might have helped? what were they?
uhm ... I used all my coping other than calling crisis
have you looked at the vast list of coping activites on the coping forum? maybe you need to have your own sort of checklist with more things to do. some of what i might do (i do have a list but i don't read it very often): things like make a hot drink, do some cleaning, go for a walk, play music (music to dance to, or sing to, or help me express sadness or anger - a playlist for everything), stumbleupon, read a book (any book), de-ice the freezer by bashing the ice that forms round the edge with a rolling pin, re-read my journal or bus place from the start or from a random place, watch TED talks, text message someone, call someone, sort out my email inbox, sort the files on my computer, create a drawing on the computer (doesn't have to be good), art or crafts, do some gardening (i should do some pruning), having a shower or bath, waiting 5 mins (or 15, or any amount)... i give up thinking for now, but there can be lots of things that help that are easy to forget about.