<prompt> Human: My gf and I are both 19. Our financial situation looks like this:My income: 1,200-1,400month depending on tipsHer income: sameRent w water and trash: 700Electric and wifi: 100-150 depending on electric usageCar insurance for me: 90 I own my carStudent debt for her: 10k. It has been more than 6 months since she has been out of school, so she has to start paying on it.Student debt for me: 8,190 currently 32k estimated debt after completion of bachelors, and I want to get a mastersMedication and therapy for me: 70monthMedication, therapy and regular doctors appointments for her: 125month Currently, but she has been declining in her mental health so much recently that she has been missing work and her bills in this area will most likely increase when she actually starts getting that taken care ofCredit card debt for me: 1k, minimum is 35month I know that I shouldnt be paying the minimum and dont plan toFood for both of us: at least 300monthGas one of my jobs is takeout delivery for me: 50-60 monthMisc.: 100-200Repairs that need to be done on my car: 400Ok, so she has had a truck with no working AC for awhile and we planned on taking it in to sell it and using that money to get a good used car for 6k, which would fetch a perfectly serviceable vehicle. Today she went with her Dad to go get said car and sell the truck. She got 6k for it, and then texted me while Im at work, saying that the one she wants is only 18k and that her dad was talking about how great of a deal it is.Apparently he also said that he would help with the payments, but when I asked how much he said he would do, I got a however much we can month to month. Then she and her dad signed off on the car he cosigned because she has no credit and they left with the car and 250month payments.With this new bill, I feel like our entire financial situation is in jeopardy, and it adds an additional layer of insecurity to it on top of her already declining health.Finally, if things work out and she shifts gears and wants to erase this, can we even take the car ... back? How would that work? Neither of us have ever done business with a dealership before.Thank you!Edit: responses that are detailed in their explanation of exactly why we cant afford it eli5 style would be greatly appreciated.  <response>: My question is: why are you talking about finances as if you have joint finances? Youre 19, and she sounds somewhat dependent on her parents. All that is fine, youre not quite sufficient adults yet. This isnt your problem 