My dad filled the wrong state in application and now he doesn't want me to give exam.

My dad filled filled the state wrong in my JEE mains session 2 application and it can't be changed. I live in a different state but Rn I am in my home town for my boards exam and plan was to give session 2 from here only. BUT now I have to go back to the city (24 hr by train from here). And my last board exam is on 25th March. My dad is coming here in a week from city for his work from home vacay. He planned to stay here for 2 months atleast but due to this mistake he has to take me back in lesss than a month. When I told him that he said- " Don't give exams, it's not like your preperation is very solid anyway. " I told him that I will give exams. he doesn't need to take me back, I will travel alone to the city.he just need to get me in the train and mom will get me off there. Tbh he is always like this. He doesn't care about my exams or preperation but he only cares if I don't perform well. He is the same person who said 'if u can't score well in jee I will marry u off' I have never travelled alone so this will be a new kinda exiting experience. (If my mom agrees or she will force my dad to accompany me) My preperation isn't good but I still wanna give it a shot and if I don't give my jee the whole family will taunt me. I didn't give session 1 also due to some issues.