Everybody Needs To Back Off

I need to know if I'm being rude or if anybody would do this as well. Lately, I've been mentally tired. I'm down to my last week in my current class...I have one more to go. I have to pay 1k for my class and it's killing me. I have an 8 year old child that is acting out in school. I've gutted my entire den and have been redoing it for the past week...every day...My partner thinks I do nothing but sit around the house. I don't have all the time in the world to entertain his text messages for him to respond hours later when I'm already kind of pissed at him. He thinks I just don't want to talk to him. My sister and I got into it over me not having time to tend to her needs. I'm mentally worn out and want everybody to back tf off! I feel like I'm always doing for everybody else but don't have enough time for myself. Am I wrong for being a bitch about it or would anybody else do the same?!