I entered most of my 2018 data in April. i want to finish my return. How do i find it so that i do not have to enter the data again?

[DoninGA]

You have to sign onto your 2018 online account using the exact same user ID you used to create the 2018 online account.

Close all TurboTax windows on your web browser (including this one).  Copy and paste the account recovery website link onto a new web browser window and run the tool.

Use this TurboTax account recovery website to get a list of all the 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 none of the user ID's received will access your 2018 account, then use the option shown in blue on the account recovery website, "Try something else"

To access your current year online tax returns sign onto the TurboTax website with the User ID you used to create the account - https://myturbotax.intuit.com/

If you sign onto your online account and land on the Tax Home web page, scroll down and click on Add a state.  

This will take you back to the 2018 online tax return.