I don’t know what to do

I’m 14 years old and my parents and I were watching a movie together on the couch, I complain about back pain so my mum offers to let me sit on the comfier part of the couch and I accept.

My dad suddenly complains about how my mum gives too much and how all I ever do is take, which by the way is not true at all.

My mum gets mad at him and I go back to sitting in the middle and my mum sits in the comfy part of the couch. I guess I was frowning or just looked annoyed but my mum stands up and storms out and I follow her.

I ask her why she left and I apologized and asked her to come back but she just started yelling at me telling me to leave her alone. She was seriously yelling at me to the point where I started crying so I left and slammed the door and went to my room, she then bursts through my door and yells at me even louder telling me that I’m mistreating her.

She goes back to the living room with my dad and I go out and yell “You always make a big deal out of things and center everything around yourself!” While crying. My dad goes ballistic and tells me to stop yelling and telling me that I always yell when 5 seconds ago my mum was screaming at me.

They always team up and attack me and I’m always wrong and I’m always to blame and when I talk to my mum about it she just tells me I’m being problematic.

I need advice or opinions on the situation, please please help.