Quoting cunning cuniculi:" http://forum.baby-gaga.com/about2322879.html here is a link to the other post i made, the last time ... [snip!] ... read it, its a long one.... it keeps cycling...how much not caring matters that is. not the detachment, thats always there... "
Glancing over that...I honestly feel like you need to work out your issues with a professional, which I am not.
I don't think you're a danger of killing yourself. But I think you could work out your issues and learn to find satisfaction in a way that would ground you, and make you care. It could make you be a more whole, happier you. It won't be easy. But it is worth it.
If there is any way you can get yourself counseling with a humanist or cognitive therapist, it would do you a world of good. Avoid behaviorists. They won't be able to help you. A psychoanalyst would be helpful, but that therapy is usually longer.
If you aren't familiar with the terms and types of therapies, look them up and decide which one would be the best fit for you.