AITA for calling my younger sister stuck up and a brat because she wanted more money?

I (20F) and me sister (16F), have a strained relationship she is an overall brat and manipulative person. Now what happened, today my mum gave her $75 to go out shopping and my sister started saying that she needs more and that her friends parents are giving them like $200. (My sister is quite popular and we live in a wealthy suburb). I came in from my bedroom to grab my phone and keys and my sister started saying that my mum always gave me more that's how I got expensive stuff. I replied telling her no, I had a job from 14 and saved money and the only way I afford stuff now like my car, saving for an apartment as well as paying for my degree and then a masters, is through 4 jobs and that mum and dad gave me nothing. And I told her if she wanted more money then she should get a job. She got pissy at me and started ranting insults which I won't say. I then told her mum and dad have been more than generous as a I bought all my own stuff while she demands stuff and has tantrums until she gets her way, and that she should get off her stuck up butt stop being a brat and put effort into life.



My mum got angry at me saying I shouldn't parent her. My dad however says that my sister needed a reality slap. So AITA?