US blues

How much does it take to earn a living?
Lots and Lots and Lots!!!

Its been a tough time since I came to US. First of all I had a stable job back in India and had to quit it to pursue higher studies in US. And ever since I came here, have landed into a complete vicious circle. Now I desperately need a job to earn something for a living.. But for seeking a job I need a SSN ( Social Security Number). And in US to get a SSN one first needs to have a offer letter.
Now my university of all places has lots and lots of Indians in here. So getting a Campus Job is also next to impossible!!
And the circle continues.

What is really a way out of this?