I'm on the verge of losing it?

Ok, so I live with my parents and siblings. I got laid off and since then I have taken over all of the house chores. It's only fair. Now.. since I have begun this my family has grown lazier and lazier.. they have gotten to the point where they don't even pick up after themselves at all. (Example: If they make themselves a sandwich they leave everything they used all over the place. Knife, ham, mayo, etc.) They don't cook for themselves, fold their own laundry, or even wash a single dish. I realize that maybe I have fault in this because I felt like it is the only way I can contribute since I am out of work. But, I feel like they're getting to an extreme level. Talking to them doesn't work. I even get crap if I have to ask them for things like laundry detergent when we run out. Like, its so horrible for me to ask them for something that only benefits them. What do you guys think I should do?? I am looking for work.. but that's not even the point.