problems with family

Alexa

so this is one of the few moments they disappointed me and it happened a few minutes ago.

I have a younger brother (4) and sometimes he can be so mean and rude because everyone in the family spoiled him. we were lying on the bed and he was as usual being rude and out of the sudden he spits on my phone three times, I forgave him the first two thinking he's going to stop because I nicely asked him and he goes on and spits the third time. then I take my phone I wipe it off on his face. he goes to my grandma to tell her AND SHE SERIOUSLY DECIDES THAT I'M THE ONLY GUILTY AND STARTS PITYING HIM EVEN AFTER I SAID THAT HE SPIT ON MY PHONE THREE TIMES.

like I'm really afraid that he's going to be a horrible person when he grows up because I feel like I'm the only person in the family that's trying to teach him to be a good person. they are allowing him literally everything and they don't mind him being rude and after his birth they became so mean to me, probably because I'm the only female child in the family (I have two brothers and none of my mother's siblings have girls)

I'm starting to feel like they are suffocating me and there's no way out