Hello secrerkiller,
I think thats the typical nepali student's life.  Most of the student who come to USA, they passed those phases going in Ocean city for summer time, working like KULLI, and the collected money to pay college fee and then gas station maa ghanta hannea and balla balla graduate garyo, tespachi k garena thaa chaina... N I think thas the problem for medium level student like us who neither can get full schollarship nor get failed.... My frns dad used to tell me that medium level students are the most troubled student and i felt the same way too. Well I also spend some yrs working in Indian resturant ani paddhai pani teti saro ramro bhyana... but still now I havent' lost my energy and feel that I can do something.... Well I think fraustation is everywhere, So i always prepare for worst doing best as I can so that i dont have to worry about what might be the result.
I am not giving you suggestion but believe in yourself and get motivated frm someone... any way all the best ahead....