Earlier quoted context omitted.
Fun fact: $30k is almost exactly how much the Swedish student loan gives you for 5 years of full time study, which I used to pay for everything (housing, food, clothes, computers, books for school etc).
You only needed $30k to survive for five years in Sweden ?
https://en.wikipedia.org/wiki/Student_financial_aid_(Sweden)
You also get, I think, about $150 a month housing allowance.
So on top of your $150 + 4×$84 = ca. $500 monthly income, you only need to take about $800 a month as a loan to survive. (Remember, no tuition fees.)