Without further details, cannot comment on whether you are Non-Resident Alien , Dual Status filer or Resident Alien for Tax purposes. Need your date of admission as F-1 or other visa, the number of days present in the USA ( for any purposes) for the years 2016, 2017 and 2018 ).
Non-resident Alien are required to file form 1040-NR ( not supported by TurboTax-- suggested SprinTax, TurboTax partner or tax professional).
If a 1040 was filed in error, an amended return using form 1040-NR must be mailed in along with a note explain the error.