I'm not sure where else to put this because I couldn't find a family section, but this is about my mom.

My mom is an extremely hard worker and I love her but sometimes she's so hurtful. I'm working so hard in school right now trying to maintain straight A's in college so I can get my GPA up to qualify for a scholarship and for the past few weeks, my homework has been nothing but papers. I've done 13 research papers already and it's only October. She thinks just because I don't have a job that means I have all the free time in the world, when in reality I do more work trying to get the grades I do in school than her working a full time job. I've showed her my course work but she refuses to get it. We haven't been able to go grocery shopping for a while and we've been eating pretty much anything that can be bought from our local Dollar General store because I've been so swarmed with papers that I absolutely CANNOT fail or get less than a 100% on for the sake of trying to maintain my grades. Since her truck is broke, I'm the only one with a working car but I've been so swarmed doing school work I just don't have the time to give her a ride and spend 4 hours in the grocery store. I've already talked to a lot of people about this and they have said she needs to chill out, but it's getting so bad I don't know what to do. I've offered to try to help her find a ride but she absolutely refuses, even if it's asking her best friends. She screams at me that i'm disrespectful when I'm trying to find a solution but I can't just drop school and right now she's wanting me to drop out of school so I can give her rides. And today now when I finally have free time, I've been quickly trying to get my laundry done because I've been wearing nothing but dirty clothes and underwear over and over because I just DON'T have the time and I've offered after I'm done I can take her grocery shopping and that's STILL not good enough. What in the world am I supposed to do?