How did you prepare your 2017 return--in Online TurboTax or desktop software (CD/download)?
If prepared online, have you located it in the section "Your Tax Returns & Documents" when you expand that section and choose tax year 2017? There should be a link there to "Download/print the PDF."
Or when you try that, does it tell you access is locked and asks you to pay? If so, we can tell you the precise steps to do that.
Or do you find no evidence of a 2017 return that you prepared online? If that's the case, we can tell you how to look for multiple accounts.
If the 2017 return was prepared in desktop software (CD/download), you are the only one who could have saved a copy of it.
We can tell you more when you answer all the above.
