My parents have paid for me to go to college in the US for four years. My parents had better financial situation that my father stopped working to start a business. The business has not been successful so During last year my father took a big portion to his retirement to pay for my school and brother. Now we graduated and my parents ask us to contribute to support my youngest brother go through college in USA despite the new financial situation. My parents always mentioned if someone struggles we should help but never specified how much. Me and my brother are doing our best to support youngest through college and give a large of our savings or sometimes entire monthly saving to support my brother through his 4 year degree. I helped my brother get scholarships and persuaded him to go to a cheaper college which he ended up going after long argument because that is the only college he got accepted to.
However, my youngest is doing some work during school. He is using that money only to buy new technologies or trips back home or to other countries with his friend. I get frustrated because I struggle to provide for my wife needs and son. I have a lot of medical debts and that kind of hurts me. When I explain. To my parents they say this is my fault and not anyone's.
What do you advise?