My parents annoy me

My mom specifically is pissing me off now. She's mad because I don't want to go with my dad to shop for shit that he knows we need, just because she went to the toilet during the night. She was supposed to go with him but nooo, I get told on the day my dad is going shopping that I should go with him because he doesn't know what pads to get. So in my mom's brain, it means we don't get pads etc. etc.

It's so unfair, I have to help my sister with her schoolwork that we should've started yesterday BUT my dad's mom was supposed to come and visit, so we didn't start on the work. The work is gonna be late if we don't start today. Now she's complaining about the fact that SHE CHOSE ON HER OWN to wash the dishes. Me and my sister would've washed the dishes when we finished with work.

She's too sick to go to the mall but she's apperantly healthy enough to complain and complain and start fights and go on and on about how I'm ungrateful. JUST BECAUSE I DON'T WANT TO GO WITH MY DAD. IT'S 6AM, 6 FUCKIN AM AND I WAS JUST TOLD TO GO WITH, LAST FUCKING MINUTE I AM SO TIRED.

I'm getting yelled at left and fucking right because my mom doesn't want to go. She's acting as if she's DYING even though she just shat during the night, but oh no when I was still in school I had to go to class while having the flu; yet she cannot go because her tummy is upset :(

My mom then said I should hike to my grandparents place to write my exams THAT I NEED TO BE ABLE TO GET A FUCKING JOB, BUT OH NO MY MOM'S 'PAIN' IS MORE IMPORTANT THAN ME AND MY SISTER'S FUCKING FUTURE???