If you want to do residency in NYC, can you take out a private loan to be able to have more of a financial cushion? I know, I know, "That's not financially responsible, bro - you need to live like a hermit on ramen and ketchup for 4 years.". It's a cost benefit analysis - I'd rather have a more tolerable quality of life now at the expense of a minimally reduced quality of life later.