I'd get anxious because I wouldn't know how to use that money, and feeling anxious would probably make me depressed. So I guess at that point I might not feel like going out anymore... oh my god, not SA again!
Seriously, I have no idea. It's not something easy to decide. Maybe I would spend like 2000 dollars a month and have a normal social life, save the rest of the money, and my job would be... studying maybe. Learning. Either on my own, learning languages and travelling, or going to some university... don't know.