The only way you can get by on $300 a month is having someone else support you. Either the government or your parents.
Well lets see.
I have no student loans. I paid up my tuition at the start of every term.
I have a 2004 honda civic that I bought used about two years ago when I was working.
So no car payments, no tuition payments. I have zero dollars in debt right now.
Gas, for what I drive around is about 20 a month or so. I don’t drive much if I can help it.
My rent is 200 a month. I am staying with friends while I look for work.
The rest is food. I’m a single guy. I don’t spend on entertainment, and we all pool together our resources so we can deal with the utilities and the payment. 3 guys in a 2 bedroom at 600/month + utilities.