<prompt> Human: Hi all,Im in a weird situation. Im 27, I work two jobs, and go to college part-time. I work two jobs to pay off debt and I take care of my mom, sister, and grandmother financially.My expenses are: Living expenses rent, insurance, etc: 1,888 Parking: 75.75 Gas: 243.78 Groceries: 461.05 Going out money: 235.25 College payments: 135 will increase to around 400 per month 500 in paying off credit cards and medical billsMy take home pay every two weeks is 1300. However, I work for Grubhub and take home an additional 300-400 per week. So my monthly income is around 3,800 per month.My car needs the following done: Catalytic Converter: 1,152 Front shocks: 880 Rear shocks: 502 CV Axles both: 1,971 Valve cover gasket: 371 Oil cooler gasket: 400Total: 5,276My car is a Nissan Altima with 177,000 miles. I drive a lot of miles because I work Grubhub during the nights and weekends. My car is in poor condition and KBB said the trade-in value is only 1400 for a car in fair condition. The private party value is 2.500-4,256. Thats if my car was in fair condition which its not.Heres my big problem. I need to fix the catalytic converter by the end of June or else it wont pass emissions. I dont have any money for a downpayment and my credit score is only 530. Like I said, I made a lot of mistakes when I was younger and Ive been working nonstop to correct them.My question is, should I buy another car? Or fix my car with 177k miles? If I were to buy a new car I would buy a used Prius or a Civic. I could then drive for Uber or Lyft. I can work the same hours I do as Grubhub and make even more money per month.Edit: I should explain that I split the living expenses with my brother. The numbers I posted above is my half.Edit 2: Normally I would chose to repair the car but the car is in poor condition. It has a damaged bumper, and I suspect more problems because its starting to show other trouble signs with its engine. I may need even more repairs in the near future.Edit 3: I asked the same question on rmechanicadvice and everyone said the car isnt worth it. They say Nissans arent very reliable. Some said that since I drive so many miles, it wouldnt last another year even if I did all of those repairs. This makes it even more difficult to come to a decision.Assistant: Im not a mechanic but that price for replacing the cv axles seems ducking ridiculous. Id get a second and third quotes. Also you can live without the new shocks. The ride quality will suck but its not dangerous. Human: Its for both, both are on their way out.Assistant: Yeah I caught that. Still seems really pricey. Is that quote from a dealership? That might explain why its so high. Human: No its from FirestoneAssistant: You need to seek out an independent mechanic in your area, Firestone is trying to sell you stuff you dont need. Human: I dont think so. I took it to the dealership and they said it needed the same things. I live in an area with a very high cost of living.  <response>: Firestone service mechanics work on commission, is their best interest to try to make you fix all, even things you might not need right now.m 