Milk with sugar

Any good non-isekai fantasy plz

Im pretty certain my mum is cheating on my dad. I overheard a call she got from some random dude calling her hot. She said she's gonna divorce my dad, it's not because of that, their relationship is shit, but I don't think it helped with ending things amicably lol. My dad cooked chicken for dinner tonight, I went to eat late bc I just had popcorn and I was playing on my phone. When I got to the kitchen and went to do my plate, I spilled the chicken all over the sink, I fell terrible, I like cooking and I know how horrible it feels when something like this happens. My mom was right next to me, she was scoping the chicken back to the pot, I was tearing up and my dad came over to tell me it was ok, the sink was clean, so it was no big deal.
Well, I thought that was only him trying to make me feel better, but my mom took it as him calling her dirty, like "if it was her cooking it would be bad, but I'm a clean person, unlike her, so it's fine". So my mom started yelling at him, and saying what he meant by that, and he pretty much just said what I just wrote. My mom tried to hit him, she said he was gonna hit her. I separated them and got angry and yelled at them, I told them I was tired of this happening every day, not this exactly, but fighting in general. It was pretty much a temper tantrum, I hit the sink with my fist and yelled at them, "you are acting like children, you're not the only ones here, you have kids" I tried to walk away to calm down, and finish my dinner like I promise, but I lost my appetite. My das came to talk to me, but it's not talking, it never is, he's just trying to pit me again my mom, and she does the same. I told them to leave, and spend some more time trying to eat, but I couldn't. I'm now locked in the bathroom, my das spend a good 30min trying to shame me into opening the door, he even got a key and tried to forcefully open it, put I also have a key inside and hold it shut. He talked about how worried he is "if I get that", to come all and sleep on my bed, that we had plans for tomorrow and that they were childish, later he changed the script to, "your mom is childish" and them "you're childish and worse them your mom". I don't care. I don't want even the slight possibility of them coming into my space and trying to convince me of anything. I said they were being childish again, that they are too old for petty bickering like this, I told him me locking myself in the bathroom is just the way I have to express myself, he said there are better ways, so I told him to go try them because this is the one I chose.
I'm tired of this, I'm tired of fighting and doing the bendiest mental gymnastics to try and still se my parents in a positive light, but I have spent the last 3 house trying to find a distraction to the thoughts of self harm I'm having. It's not like I ever done it before, or like I want to, but I just need them to know how much this isn't just about them, I keep thinking about how I just wanted to get the two of them in a room and dump all the kitchen wear in front of them, them stab myself and scream at them to just finish the job, if they like hitting each other so much they can just kill me and end my pain in the meantime. I told them it's not just about them, I told my dad that if he thought it was going to be just about, he shouldn't have had kids, but he just played stupid. He said me and my brother had our own lives, that it wasn't about us, it has nothing to do with us.
But it does. My dad antagonizes my mom and brother, my mom antagonizes him, they just love talking to us about how the other one it's terrible, stupid, bad at everything, if I do some chores in a way they don't like, they just blame one another, if anything happens, it's the fault of one of them. We are dependent on our parents, and we will be for many years, it is about us, we are in the middle of it. I was literally in the middle of it.
I know I'm not a grown up, I don't know everything, not about money issues, not about love, or anything about their relationship, but it's not fair for them to just expect us to ignore all of this, to just pick a side and treat the other like they do. We already aren't close to our extended family, I don't have any friends, I have nowhere to run away to, I'm scare to go outside and of my future, and I can't even talk to my parents. All I do is walk on eggshells around them, every conversation is like decoding a bomb, I want to be honest and open about what I think, but if I say anything they don't like them in just like mom, I'm just like dad. I'm literally both of you, why is it so hard to accept that? What can't they see how talking like that affects other?? My dad just wants to manipulate me into being on his side, he's the one who cares, we are similar, your not like you mom, or your brother, you care about me don't you? I'm tired, I want a friend, I want to go away and never come back, I want them to talk like calm civilized people for once, it would solve so many issues. I just graduated high school, I'm a useless kid who can't do anything and definitely can't survive on my own, I don't have any friends, my brother and I aren't close, I have no family outside of this, I'm all alone and trapped in this house. I always close the door so I won't bother my family, I wear earbuds till I get headaches, I'm not a good or even barely close to perfect child, but I just want a peaceful life, where, even if my family doesn't get along, or doesn't live together, I just want to not have to worry about them hurting each other. I'm tired