Why does my brother hate me so much?

I'm posting this anonymously because I don't want people thinking my brother is a bad person and I'm uncomfortable talking about my private life.

My brother is 2 years older then me and we used to be really close until we got into are teens. I joined his school he turned into a monster. Maybe I embarrasse him but I don't know why.

He'd always stop me from spending time with my friends outside of school and be nasty to them too. I remember I went to a fun fair with some friends from school and it was a mix of boys and girls. He called me a "little slut" and slapped me around the face in front of everyone for being out and dragged me home, I was 13 years old then and he was 15.

He's always calling names like "bitch", "whore" and "slut" but my parents don't believe me when I tell them because he put on the prefect brother act in front of them.

Now he picks me up from work and if I'm one minute late out he yells at me in front of everyone and threatens to drive off without me and make me walk home in the dark.

a lot of people assume he's like a abusive boyfriend at first but then I explain he's my brother and people walk away from trying to help.

I've tried sticking up to him once before and carried on walking home from work whilst he drove next to me. I put my earphones in to block out all the verbal abusive he was shouting from the car but eventually he got out and pulled me in by my hair after i fell to ground trying to fight him off me. Leaving my ear phones on the ground , my phone smashed and covered in cuts and dirt. He told me I was a waste of space and I needed to sort my life out.

I refused to get out the car when he got home, cried so much. He told my parents I was a ungrateful brat and I ran away from him and fell on the ground as to why I was covered in cuts and they believed him over me.

Updates
+1 y
I don't know what I did to him for him to hate me. But I've told him, I'm gonna kill him one day I don't mean but I just wanted to scare him. My real plan is to save up enough money and move out. One time a colleague offered me a lift home and he saw but the guy was bigger than him so he drove off but when I got home. I got such a grilling he took pictures and told my parents I was seeing my manger and yet again they believed him over me.
Updates
+1 y
He called me a slut and said if he ever sees me with another man again he will set all my stuff on fire. He even encourages his friends to bully me when over most of them just awkwardly laugh because they feel uncomfortable but one or two have shown me kindest and said I need to move out ASAP
Why does my brother hate me so much?
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