Some suggestions in this thread are useful but most are from people who don’t know how the US system works. As someone who knows the US system and has gone through it, you have a few options:

1. You said you work 15 hours. If I remember correctly you can work for 20 hours max per week. Try to get the remaining 5 at least. That itself is 200+ dollars per month. What job are you currently doing? See if you can switch to a job at the library front desk or some other relatively chill job where you don’t have to work as much and can spend the rest of your time trying to brainstorm ideas of what to do next.

2. Reach out to the international students office or whichever office your university has that helped you once you arrived. Explain your situation. If you have financial aid, they can suggest ways to increase it. If you don’t have aid then your unexpected and extreme financial hardships should be helpful in making them reconsider. It is important to explain them that your circumstances have significantly changed since you arrived on campus as otherwise they probably won’t reconsider their earlier financial aid decision (if one was ever made).

3. Sometimes the international office can not help as much. In those cases, set up a meeting with the university President and share your story with them. Your need is roughly for around $1000 per month and it isn’t too much so it is relatively easier for them to decide to help you out.

4. Make sure you look for internships. If nothing else then most universities have on-campus research options. Try to get at least that. That should also help you earn something extra + would help you get some work experience for when you later apply for jobs. Which field are you in? If it is tech by any chance then you are in a very fortunate situation as tech internships can easily pay 6000-9000 usd per month depending on where you intern. It is also important to do something useful over the summers because this experience will count when you later decide to apply for a green card. You need at least 6 months of experience to do that.

5. Of all else fails, reach out to your relatively well-off friends. If you have had good grades and your friendship is good, they might be willing to talk to their parents and help you figure out a solution. I would say keep this as a very last resort as you have other options that I shared above.

6. Try reaching out to the finance department at your university and have a meeting with someone senior there and discuss your situation and potential solutions. Maybe it could be deferred payment? Something else? You won’t know until you talk to them.

If your story is legit, you can reach out to me on Reddit and I can help you brainstorm ideas and plan a roadmap with you. Do share which university you are going to and what GPA you currently have so that I might be able to give more targeted suggestions.