Student, broke, bought a bad car and now I m desperate because I need to fix it

A year ago I managed to buy a car (a 2003 Audi a3) from some savings but because of my lack of experience I bought it with a lot of hidden malfunctions and they keep popping up and now I m really broke and really need that car to be able to do something for my family. My mom is alone 'cause my father died in hospital because of pneumonia when I was 18 and I m desperate to find some financial help to get myself back on track. I only need those money to buy the components because I will fit them myself. I m really passionate about cars and everything that happens inside when you turn the wheel or push the throttle. I m very thankful to anyone who can help. May God bless you!