Love Triangle: Should I Marry My Ex-Student?

Actually we both want to marry each other. But as he is younger than me so I was waiting for him to finish his studies and be of age to get marry. My parents have a problem with him first he is younger then he was my student once. They don't have their own house. It's the points what my father says to me and he says he knows something else also but he doesn't want to tell me. but we do elope from my house once because my father was retiring and it's my thoughts that he will now force me to marry someone else. At that time he was underage and not stable I was also not earning his parents convinced me that they will talk to my parents once he gets of legal age to marry and they inform my father to come and get me. There my father told them once my partner gets of age and if we both still wants to marry he will perform the rituals. But after that once I came back my home my father what he had told. I was previously depressed again It triggered me. Then my parents have done everything thing from astrologer to baba they was convinced I am hypnotized by my partner. I have tried many times to make them understand. Till today they never leave me alone at home. I am not even allowed to go out to shop alone. If I say so my mother sees me with questioning look. They thinks I will elope again. I am not allowed to take decisions till now. My mother take all decisions and she has told us this that if you want to live here you should live the way we want. I have two younger siblings everytime when I say them I will only marry him they trigger my younger siblings. Last time when his parents call to my father my father says false things about his mother. I don't know he may be interpreted wrong. But I was then convinced I will leave this house at last moment my father says things to me like if you want to go you can but I will call him and his parents I will insult them in whole society I will shave my head and told everyone it's because of you or I will kill him or I will kill myself and whole family. Them my mother started crying you want to spoil your younger ones lifeyou are this that. And I lost all my confidence all courage. Now my partner's work is growing so I have again gain courage I have decided to talk to my parents that I will marry and I will bear all consequences. It's my life and my marriage should be my decision. My father has said he will think. But I have decided I will talk to him again and again. But I have fear if he doesn't agree what will be my next step. I do want to marry. And I want family kids.