With the recent layoffs in tech (twitter, FB, Google, etc), a lot of people who are currently working in tech who are here in the US on HB1 visas, will now need to come up with a plan because they will have to leave the US shortly (I think with in 90 days).
You are looking to come to the US to do what? What is your plan after graduation?
You talk about your relative who came got aid with a 3.25 GPA and a 1300 SAT? How long ago was this?
A 3.25 (which is not even a B+ average) is going to be a hard task to get admitted, and is probably not going to net you any money.
What are your options in Nepal?