I'm 19f jee dropper been neglected at my home my whole life even on my bdy

I'm 19f preparing for jee exam online from home. I have my exam that I have prepared 3 years for in 10 days. I have my birthday tomorrow and I just asked my mum if there are any plans for it. I didnt expect anything much but atleast a simple good dinner at home would have made me happy. No cake no celebration needed. But she replied very rudely and told me to shut up and not bother her about a birthday. Even though I have been neglected at my home all my life, I didn't expect such a thing on my birthday atleast. At my place, everybody celebrates their birthdays. It's not one of the households where birthdays have never been a day of celebration. My elder brother 21m had his birthday 5 months ago and my parents went all out with buying him a cake, new clothes, arranging dinner and inviting people over. It's been clear to me since a long time that I'm not an equal as my sibling in my parents eyes. I know that and have made my peace with it though it does hurt me from time to time to see such partiality being done on a daily basis. I have always been the ideal kid focusing on academics, being generally good to people, minding my own buisness but my parents subtly and sometimes clearly state that I'm unwanted and not welcomed. Since it's my drop year they have insulted me multiple times for not making to a gov college fresh out of high school and I just suck it in coz I have nowhere to go. They mock me, insult me and tell me on my face that I'm worthless. They don't do these things to my brother though he is elder to me and himself staying at home. I have no friends too since they actively made an effort to cut me off from all the people from my school. I'm not allowed social media though I use it secretly and I'm only told to focus on studies. I know it's wrong but I'm helpless. The only way to bring myself out of this dark place is by moving out somewhere far. I hope I can make myself proud by clearing the exam. I have suffered a lot and for the person I'm and I know i don't deserve it. P.s- I also wanna make it clear that I'm from a financially well to do family and it's not because of some unavoidable reasons that they are not celebrating my birthday. It's just pure neglect and unacknowlement.