The lock should expire after 15-30 minutes, so wait a while.
It's even possible you have more than one account. To get a list of your User IDs, reset passwords, and recover account access, you can use the tool at the link below. When using the Account Recovery tool, try using your phone number first. After that, if necessary, then run the tool on your email address(es) you can access.
NOTE: Before running the account recovery tool below, log out of all Intuit accounts including this user forum, or you might end up in a loop. Then clear your browser Internet cache, close your browser, then reopen it, and go to the link below. You may wish to copy this link so you can paste it into the new browser session.
https://myturbotax.intuit.com/account-recovery
If still no luck after running that on your phone number and email address(es) that you can access, here's another method:
Go back to the tool again, but this time leave the data field blank, and choose the small blue link that says "Try something else", and it will look you up by SSN and other parameters.
See my next comment below about download/printing your 2019 return.
