This is normal in anypart of the world, not only in US. If you see people in develped countries especially UK and US, 80% of Nepali either quite their studies or delay to extend legal stay. In other hand, expectation back home is quite high. They expect us to get degree as well as money, which I suppose is impossible at once. Here where you have to take the decision - (i) do you wanna work hard, get frustrated now but continue education, or (ii) you accumulate wealth and quit education to get frustrated later on. Decision is yours.