RajaHarischandra, thank you very much for your advice.

no i haven't gone through the process u've suggested. one of the sajha user suggested me the same but i haven't done that yet.
do u think this could help? visa was rejected coupld of times and i don't know what next. there is no way i can go back to home right now  on this situation nor  can stay here peacefully. though i'm now trying to console myself, US is not the end of the world and i may do sth better back home but still..............i don't think this terrorist led government and unstable political situation is good enough to make some commitment right now.

again, thanks for sharing.  this is the reason why i  visit sajha that helps us to meet  the people like to who can understand others' problem.