After you file

@donkeykong3x3   what is your question?  About transferring 2018?  Where is your 2018 tax return?  Did you use the online version?  Do you want to transfer it to 2019 Online or Desktop program?

 

Are you signed into the same exact online account?  That's common to end up with multiple accounts. First LOG OUT of whatever TurboTax account you're logged into right now. Then use this TurboTax account recovery website to get a list of user ID's for an email address. Run the tool against any email addresses you may have used
https://myturbotax.intuit.com/account-recovery/

If you used the Desktop CD/Download program then the only copy is on your computer and not saved or stored online.