Back from college, and people expect things to be the same...?

Hi, so there is a lot of negative energy in my house and most of it is directed at me even though I do absolutely nothing to offend anyone. I used to clean up the house thoroughly in high school as one of my chores, in addition to after school sports, and a job and now that I'm back home, I really don't feel the need or responsibility to stress myself out cleaning up after my irresponsible, filthy family. Now that I refuse to follow after people picking their stuff up, my mom has been having anger outburst about how I'm not cleaning up the house. I don't make messes, I clean up after myself like a responsible adult, and I have the right to defend myself in the midst of unwarranted anger from my mom and from my nearly absent father. Remember what I said about juggling all those activities in high school? Yeah, I have a sixteen year old sister who can't clean a thing because "she's in school all day". And people just accept it! I don't know what to do at this point. I refuse to clean after people, but I'm so tired of the negative energy being directed specifically at me! Help!