You can use the Account Recovery in TurboTax, see the following
Forgot your TurboTax Online User ID or password?
Try these steps to recover your User ID or password:
Once you’re done, we’ll either send you a code to help you recover your account, or show/send you a list of accounts associated with your info.
Keep in mind: Once you’re back in your account, make sure to include or update your phone number. Doing so helps increase account security and ease account recovery.
I forgot my password and can not get to the recovery page!
If you are still having trouble with accessing the Account Recovery page, please use the following link for further assistance:
You should not post your personal info or password hints in this public user forum. It is not safe. Everyone in the world can see it.