you're having homesick. you will be alright after a week or two, no worry. try to spend your time watching movies, sports (if you don't have TV, you may watch it in youtube, etc.). You can try online dating here, there are few good free sites.
Don't think about family a lot. I mean we all love our family. Think from their perspective, they would most probably want to see you succeed in the US. 
all else think about long load-shedding daily in Nepal, most roads broken with traffic jam, dusty, bad smell, all chaotic situation that we are all so familiar with.