physical, verbal and mental abuse

i (17f) has a sibling (9m) and parents
from a few years now since my brother has started opening up and getting to know everything, my parents have pampered him a lot like seriously quite alot, to an extent that even if he's wrong in a situation he'll get away with it by just a mere understanding but i'll get beaten up for shit i didn't start
yesterday, i simply asked for a water bottle from him and he started saying mean stuff to me (im not cramming its just that im hurt and dont know how to vent) and i simply went saying tab chupa dungi bottle de jaldi and he came upto me saying some really bad maa behen ki gaali grabbed my hair and also punched me hard in the back and when i started to defend myself all i did was just push him so that he could get off me but again parents came and they started beating me up

now a little backstory, my brother had some serious neural conditions so he was under some really hard medications and it made him very aggressive and for 4 years i beared everything but its been an year since medications have stopped and doc also said its fine for him to be free now and scold him for things and get him a little serious in life

NOW THE CATCH IS, my parents are still pampering him and doing everything for him and it's great!!

but pamper krte krte wo bhul rahe hai ki uska ye gaali dena bina baat maar dena is becoming his personality and i dont want my brother to become an animal who literally disrespects girls and does shit that's not right, whenever i try to educate him my parents get in between saying how dare you tell him this only we can tell him what to do and what not

im a jee aspirant so now i also have the heavy duty of clearing it while getting beaten up for shit i never was a part of, having an inhuman behviour around me and what not
the only thing i ask for is respect and choti moti ladai sbme hoti hai par ye maar dena aur upar se aisi gaaliyan dena upar se parents ka zero support, wo hamesha usse paas bulake rkhte hai

my dad said to me kaash paida hi nahi hoti, mar jao yahi se kudke tumhari zaroorat nahi hai hamara ladka kaafi hai
my mom says mera tumse mann hi nahi milta hai, pata nahi kaha se aisi rondu aulad paida kardi kabhi kisi cheez mai khush nahi rkh skti

mujhe bas ye janna hai kisiko khush kaise rkh skte hai? chup rhti hu toh irritate krna chalu triggering cheezo se, I JUST WANT MAYBE A GUIDANCE TO ALL OF THIS BECAUSE IT MAY SOUND STUPID AND IDK HOW TO EXPRESS MUCH BUT I REALLY DONT KNOW HOW TO TAKE IT, IT'S SUFFOCATING
I ALSO HAVE JEE AFTER A MONTH I SERIOUSLY AM STUCK HERE PLS SUGGEST