Pire is absolutely right. Come with a right attitude. I can see the point why you want to save money. I do not know your area of study. If you find RA then you will be paid little better then I am sure you will be able to save some money that you can save. Once you come here you will be explore more opportunities. One thing keep in mind, you are one of the lucky that you have assistainship. There are so many Nepali here who work in dhoti ko resturant and gas station to earn their tution fee. I am not sure why are you so much worried about Green Card. There are several ways to get Green Card. 1) As somebody suggest run around some fat chicks. 2) Do something amazing in your school to prove yourself extraordinary. I know few Nepali who have got green card through it. As far as I know this is the fastest way you can get green card. 3) Find a good employer and so on........... Good luck dude. Enjoy your time in Nepal. You will have hell of a life once you land.