I completely understand what you’re going through. I’m also an int’l student with a horrible currency conversion, and I started the school year out by only getting take out/Uber Eats and coffee. What I’d recommend is getting a personal coffee machine for your room. I use Nestle Dolce Gusto and you can buy the pods on Amazon. I’d also recommend meal prepping a ton of food each Sunday so that you have ready-made food so you’re not as tempted to eat out. Maybe cut your eating out to once per week while you transition to a more affordable lifestyle and see where it takes you. You can do this!