Solved
Do I just change my password?
The TurboTax online editions can only be used to complete and file one tax return per account and User ID.
To start another tax return using the online editions you would need to create a new account with a new User ID - https://turbotax.intuit.com/personal-taxes/online/
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.