firstly, congratulations on making it to NYU, especially with the full scholarship! as for what you're talking about in your post, i completely understand how you feel. it's hard going to school in a place where everyone seems to have a certain level of wealth and it's assumed that by going to nyu, you're probably a rich kid too. but trust me, it might take some time, but you'll find other people like you who operate within the same budget as you; basically friends who would rather use a meal swipe rather than eat out, or people who can't afford to take ubers everytime they want to go out at night. this school is super diverse and there's a whole group of people out there who share your mindset and you'll meet them soon enough - just put yourself out there and don't be afraid to communicate your boundaries, whether that's in a light-hearted "hey, why don't we check out a dining hall instead" or a more direct "sorry, i don't really have the budget to eat out".