I hope you don't take this the wrong way I am just trying to give you good suggestion. Nursing in the US isn't as "hot" as it used to be couple of years back. As an international  nursing student it's extremely hard to get paid internships. In other fields you can easily find something to maintain your OPT status but for international nursing students it is very hard. That doesn't mean that there aren't Nepalese nursing students who have been able to do pretty well for themselves. I am just saying that nursing is pretty tough for international students right now.