I
SH for different reasons- sometimes to punish myself, sometimes to distract myself from overwhelming emotions as physical pain can come as a bit of a shock; the physical pain is hard to ignore and temporaiky focuses my attention away from my emotions and toward what my nerve cells are telling me, which is long enough for the unbearable emotions to subside.
However,
SH is a quick fix like drinking alcohol and doing drugs to get rid of pain - it temporarily makes you giddy and high but it has long-lasting effects which are much more severe and often makes the problem it was trying to cover up worse rather than solving it. And it becomes a vicious cycle because it's addictive, which makes everything worse. It is a much smarter idea to fix problems and reach out to someone if emotions are getting too difficult to control on your own, because
SH does nothing but make life even worse for yourself.