if you go by rules, Student  from Nepal must file 1040 NR.  You already filed 1040 and no turning back. But you may face consiquences in future during the green card process.

Couple states has provision for Health isurence and if you do not have 1099 HC you will be paying penalty.
But there is catch and you can avoid it checking religious reason or cultural purpose ( I have not reviewed 2015 yet ).
Check with me in couple weeks.

Try other softwares too.