[ptbrock]

Seems to me like your best bet would be to see if your family friend can introduce you to some people to tutor privately. That way you could get paid cash under the table. It certainly wouldn't make you a ton of money, but it's more than nothing.

As others have said, without a work visa, you can't be legally employed, so any kind of real job is out of the question. Taking classes shouldn't be a problem, regardless of your visa status.