I 14F lives with my mom. I have five siblings one big sister, one big brother. I'm the third oldest my little sister and my two little brothers. I don't go to school. I'm on online school and my mom goes to work. My other siblings go to school except for the little ones. I watch the kids every day when she goes to work. She works from 5:30 AM to 1:30 PM. One of my little brothers has autism and my other little brother cries a lot, but I deal with it and I take care of them knowing that my mom has to make money. My brother 16M has a room in the front part of the house. We just moved in so we don't have any furniture in the living room so I go in there just to get a little space away from my siblings, but his room is right next to the living room. He is very, very, very aggressive. And we have gotten into various altercations, and I got the police called on me for putting my hands on him after he spit in my face. He was mad about me being in the living room because I was being loud. I am hard of hearing so if I'm walking loud or I'm talking loud, I'm not aware, but it was the way he came to me about it. I wouldn't be mad if he asked me can I go to a different place because I was being loud but he told me to get out of the living room and not come back in there because he's sick of hearing me. I told him I'm not leaving at all but before this, my mom asked me can I watch the kids. I said no because I was watching them all day. I asked her to ask my other sister or my big brother. My big brother got my brother and me and him start arguing. She always picks his side and never hears my side even though I told her he's always picking with me so after I said, I'm not watching her kids I went into her room to grab my charger and she told me to text my dad and she said I can leave emphasis on when she said that I can leave. I agreed and after she headed out to the store, I grabbed my charger and my phone and I walked to a nearby park that had Internet. I text my dad to see if he can come pick me up, it was around 5:30 pm at this point and he doesn't get off until 11 pm so I decided that I was going to walk three hours away to get to my Granny's house and I kept getting text messages from my sister asking where I was and my mom was threatening to call the police. I didn't care and I kept walking it took me 3 1/2 hours to get from my house to my Granny's house and she threatened to call the police and give me sent to juvenile but she never went through with it.

Am I the asshole for leaving when my mom explicitly told me to?