Are you using the same online account that was used by your son or daughter to prepare a past tax return? If you and one of your kids used the same account and user ID for returns last year, the second one overwrote the first one. When you use online TurboTax, you only get one return per fee. Each returns needs its own account and user ID.
Or.....maybe you are just in the wrong account and need to find your own account:
Many people have multiple TT accounts and forget how to access them. Log out of the account you are in now.
https://ttlc.intuit.com/turbotax-support/en-us/help-article/account-management/many-intuit-accounts-...
Account Recovery
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**