It really annoys me how my parents have such double standards for me and my brother

This sounds dumb, but it matters to me. It's 7am, I'm already awake. Like I am most mornings because I work for/with my mother (14F) I get 50€ a week for babysitting 3 infants and 1 seven year old with my mother. I usually have to get up at 8 to do so, the latest baby goes home at 6. So yes I'm working the same hours as a 9-5 for 50€ a week, I'm grateful for my money and I usually save it up for a while then I can buy nice things. Now, my brother is 13, my mother gives him money as if it grows on fucking trees, he just comes and asks for it, every day, "can I have money for the shop" "can I have money to go to the cinema with all my friends" "can you book me tickets for me and my friend" "can you give me 20€ for going out" and she gives it to him, he stays in bed asleep until like 2pm DAILY. Usually my mother shuhses me while he's in bed, I'm not allowed to talk much, But today for some reason he was up at 7am , also today I didn't have to start work until 10. I'm awoken at 7:10am, my mother, father and younger brother are all downstairs, he's quite literally shouting. My parents aren't telling him to be quiet. Aren't telling him to shush. He gets free money and gets to wake me up on my late days? I have to work a 9-5 for the money he gets in 3 days after getting up at 2pm in the day and staying on his ps5 all day. I'm so tired, I didn't get good sleep last night and I thought I'd be able to sleep kinda late, 10am, that's all I wanted.