Ranting ft. OCD

This is a little rant that drives me crazy and I'm 12 diagnosed with OCD so you may know where this is going. This week we got a new chore system that my mom and her boyfriend designed and it's driving me crazy. One person has to clean off the table while the other wipes it down after, shouldn't the same person do it? Same thing with the trash. One person takes it to the garbage can outside and then the other takes it to the street...😤 Everyday when I get back home from school, I have a little system. I get home at EXACTLY 3:10. I take the dogs out for 10 minutes, then read until 4:00. Then I practise my Clarinet until 5:00. Then I do my homework. But today, my mom asked me why I haven't done my chores yet (she gets home around 5:33. Which drives me crazy) So I explained my system, and that I was just about to do my chores but wanted to relax and take a break until 6:00 and then I will. And don't get me wrong, I don't mind doing chores. I don't mind cleaning at all. It gives me a chance to listen to my music and think (I am also VERY observant and think...A LOT) but she told me to do them now...that just rubbed me the wrong way. I don't know why I am so pissed off from it but I am. Is there anything that can help with it?