For context, I 17M have a strained relationship with my dad 48M, who has been the source of a lot of trauma in my life. I try to look past it and be civil with him, while he often throws it back into my face by making our relationship worse. But for the main subject here, earlier this year, being March, I failed my math test. It's not the first time I had failed a math test, but it was the worst result I had ever gotten in a math test to begin with. I had never been strong in math, but my dad still forces me to take it, and this time it is at the AS level, even though I have already completed my IGCSEs, and what I want to study doesn't require me to have a symbol higher than C, since that's my symbol. For those who don't know, AS mathematics is mainly there for those who want to become doctors and such, I don't, and I've never been interested in that. Now that I got that out of the way, it's time I tell you the situation. My dad blew up on me, and even threatened me, saying that he will kick me out of the house, if I don't get a distinction, which is 80% for the next term. Which I believe, since he's done it before, but never overnight. Fast forward to July, I got my results back, and got 15% for my math exam, while I passed all my other subjects with 50s. This was after I spent a lot more time studying than I ever have for math. Watching YouTube videos, asking my teachers for help, going on ADHD medication, getting extra textbooks, neglecting my other subjects and past papers for more help, but it did nothing. So just a week before my report would be issued, I got to planning my run away. But towards the end, I told my best friend, 17F, about it, and she got me to talk to her dad, 47M, and he reported it to my school, which of course led to my dad getting a phone call from the school. I don't know what my dad said, but he somehow got away with it, and even got the principal on his side, saying that I was at fault for not showing him any proof of my effort, with my mom backing him up. I will admit that I didn't show him anything because of past events where he would blow up on me for not getting that distinction he wanted, or me genuinely struggling to understand a concept, with me on the verge of tears. To rub even more salt on the wound, he even said that I was committing fraud by "falsely" reporting him. I do understand that my actions might be seen as rash, especially since this is my dad, but since I can't reason with him, and he doesn't try to understand my genuine struggle and effort to keep up with a subject that I don't even need nor want to take, I decided that I might as well leave of my own accord, so that I would be away from him. I'm not going to change my stance on this. I put it in the effort, and got my result. Am I the asshole?