Please help. I’m 17, trying to make money before I turn 18

I will be going to university in 9 months, I need to make some good money (hundreds of dollars) for university as my parents don’t wanna give me money for selfish reasons as my parents earn 15k per week) . And when I do beg , i only get $50 after hours of begging. I live in a toxic household, and I just want to be free, independent and not rely on people that don’t want any good for me. Anything, like a trading website for 17 year olds, investing websites for 17 year olds would be fine. Please help