You say that you are an international student. If you are a non-resident alien you are not able to use TurboTax---so we need to know that first.
You can use TT’s partner, sprintax:
https://www.sprintax.com/non-resident-alien-tax-1040nr-turbotax.html
And ..... you do not say what software you used when you filed your original federal and state return. What software did you use? If you used some other software, you should be using that software to amend.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
