Did they use TurboTax? Did they use the Online version or CD/Download version? If they used TurboTax Online then you would need the UserID & password they used to prepare your return. Then you can sign into your account to download a copy of your 2018 return.
If they used TurboTax CD/Download version, then your return is on the computer they used to file your return. you would have to ask them for a download of your 2018 return.
If you want to use TurboTax this year, you can use the Online version & create your own account or use the CD/Download version. When you go through the program & it asks for any information from your 2018 return, you can use the pictures you took of your return & enter the information manually.