I just failed my board exam and my imaan is shaking

As-salamu alaykum everyone. I sat a huge 10-hour board test recently and just found out I missed passing by only 3 marks. I’ve not been myself since-all I want to do is stay in bed. I'm questioning everything in my life right now. I don’t know why, but I’m struggling to pray, and it’s been like this since after the exam. I’m so drained mentally. I woke up for tahajjud and made dua for my results before and after. I did so many duas. I left the exam feeling somewhat confident and kept telling myself insha’Allah I passed. This is the first time I’ve failed a test I actually studied for (I’ve taken other board exams before this). I’m having really negative thoughts about dua and naseeb and everything, astaghfirullah. My father doesn’t know yet, and I’m terrified to tell him. I will start studying to retake it, but I feel so hopeless. I’m in a really bad place and questioning my faith a lot. I made dua for this in Ramadan and on Arafah. Please, someone help me. My chest feels tight, and I just feel absolutely horrible. I know this isn’t the end of the world. I feel like a failure in front of my parents, especially my father. He’s forcing me to become a medical doctor, and he’s very strict about education-he’s a narcissist who yells, insults, and scares people. He already thinks I’m a failure because I delayed my studies for the last two years to take a mental break and finish my other four board exams. He’s so serious about education that he won’t even let me get married until I become a doctor. If he finds out, he’ll insult me so much that I won’t be able to study and retake it. The night before this exam, he was insulting me in front of my mother, telling her I’ve done nothing in the last two years compared to others already on their way to becoming doctors. He doesn’t care that the purpose of life is to serve Allah. He’s a businessman who only cares about having successful children who earn a lot, because he came from nothing and built himself up. He also wants to brag about his kids to others. He’ll never understand even if I try to explain-he doesn’t listen to reason. Any advice? JazakAllah khair. I know I need to count my blessings. My worries are nothing compared to others’. It’s just my father’s reaction. Please make dua for me.