If you used the TurboTax online editions for tax year 2022 and entered your sister's tax information on your online account after you entered your tax information, then your tax information is gone. The second tax return overwrote the first tax return.
If this is not what happened then you need to sign onto your 2022 online account with the exact same User ID and Password used to create the account.
See this TurboTax support FAQ for account recovery - https://ttlc.intuit.com/turbotax-support/en-us/help-article/account-management/request-access-turbot...
