I did my whole return online for 2018 but saved it for some further information. Why can't you find It??
Do you have a phone number?
I would check and see if you might have multiple accounts with TurboTax. Your information may be safely stored in a secondary account. You can do so by logging out if you are currently logged into a TurboTax account and going to the recovery website below for a list of user IDs for any email addresses you may have used.