Your visa status will decide your situation in USA. From your information, you are definitely not coming as a student. So are you coming as a tourist? If so, you are not allowed to work legally in USA and your life's gonna be very tough. If you are coming as a GC holder, then come to the place where you can have some moral and logistic support from your family or friends coz you're gonna need that a lot in your initial days. Once you are here, you can figure out what you can do here.