As the other two said, you seem uncertain. It's never, ever a good idea to carry out something like this when you are thinking this way. Not only can it screw up your plans, it might make the experience much worse. Plus, you possibly could change your mind during the process, but by then it could be too late, or you call for help/get found and end up institutionalized. Neither are options you would want.
As for someone to care, well, three people thus far have said you should think about this. If that doesn't show caring, well I guess I have to look up the meaning of the word again because I clearly don't know what it means. That said, take some time to dig deep down inside yourself and figure things out. In the meantime, talk to people you feel comfortable with and trust. Whether it be here or otherwise. Just don't make a rash decision based on emotion alone. I wish you the best for yourself and remember, people do care.