I'm an adult who SI's. My question is whether I'm the only one who plans it. Sometimes stress overtakes me, and I immediately feel it's the only option in order to get a release. However, more often I feel stress building, and think ok later I can do this, and it will help. That need usually build over a bit of time. And still, at other times, I'm anticipating a stressful event, and I do it beforehand, because I almost feel that doing it beforehand will give me strength to handle it.

Do most people SI on impulse, or do others put thought into it like I do?