Congrat Bro,

I do not think there are 2.5 million PHds in the US. That means you are within the top 0.5 % or so and keep up the dream alive. Next time a Nobel Laureate in physics could be a Nepali dude like you trying to find the number of Nepali phds. Hope your degree will not land you like the person Dr. Babu Ram Bhattarai. Good luck!