Hi celtic, I'm sorry your family seem so unsupportive, and just don't seem to "get it". SI should never be seen as a joke!!. I don't know i it would help if you opened up to them a bit more and told them what it's really like...........??? But if not then I'd say that they really aren't worthy of any of the pain their reactions may be causing you. And maybe try to leave their attitudes where they belong.....nowhere!!!
As for people not caring about you, then you are going to find lots of caring people on here who will think/feel that you really matter, and we're here for you!!
It would be really good if you could start caring a little more for yourself as well though. You deserve that!! I know that can sometimes be SO hard, but perhaps we could help you just a little there too............

With the route of where it started I was actually thinking of any things that happened to you which gave you the need to start previously. And whether those things were having an effect on you still, whether they were still there "in the background" for you.
But if you think it would be more helpful/relevant to either pinpoint some of the feelings attached to the cutting itself, or the trigger that started it off again this time............might be helpful.

Alison