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Like I know this is stupid, I am a F18 who just started my last year of school.

I have been really busy doing schoolwork and helping around the house which is normal.

But now for context my father has a very sickly mother who is in her 80's, she lives with us and has a caregiver. The caregiver isn't here during weekends.

My dad works all day, working hard, but even when he's working he needs to leave work to come pick me or mg siblings up, take them to and from school or come to check on my Granny or get her whatever she wants.

My mother however is a stay at home mom who quite frankly does nothing. She constantly asks me to help her mom, my Nana and my dads mom, I usually have no problem with helping but I am homeschooled and even when doing something important she will interrupt me to make me care for my granny since she refuses to do so.

She also makes me do simple things like help my siblings with homework, or cooking or washing, and dishes, and I am fine with that.

But even after helping her she says I do nothing in this house.

Now my mother does have a Chronic migraine illness, but the problem is it stops her from taking care of us but doesn't stop from yelling at us/punishing us or taking her mother out whenever she wants.

I'm talking she will drop everything even land up not picking up my siblings from school just to do something like take my Nana shoe shopping or stay home for a call.

She never helps me with schoolwork or anything but acts like she deserves the mother of the year award. I have been doing school work by myself, no teacher since 2020 but she still acts as if I couldn't have done it without her. Even thought she sleeps from 8pm - 2am - 12pm or later.

Now recently I talked to my mom trying to get fair treatment as my Nana uses money like its free, bosses us around and calls us useless or tells us to jump. I

I landed up getting annoyed. Talking back in a rude manner which I did apologize for.

My mom started treating me like a roommate.

Then she lied to the doctor getting me on anti depressants because she couldnt handle my mood.

So today when she asked me to do something for my granny again while I wasn't feeling well I told her I really just wanted to rest. But she said everyone feels bad (which is untrue) and said she doesn't want to go to my granny because she's avoiding her.

I did snap at her rudely and I know it was wrong of me and I'll say sorry later.

But I dont know what to do, talking to her gets me in trouble instead of getting me help or support.

She us now acting like I am the worst daughter ever for snapping at her but I don't actually care.

So AITA? A lazy daughter even? Or am I a little bit just in this situation even if I snapped at her.