To access your current or prior year online tax returns sign onto the TurboTax website with the User ID you used to create the account - https://myturbotax.intuit.com/
When you sign onto your online account and land on the Tax Home web page, scroll down and click on Add a state.
This will take you back to the 2023 online tax return where you can make any changes needed before the tax return is filed.
No I still haven't figured out how to change my amount on my state taxes
Since SSI is not taxable on your federal return, only a few states will ask for it. If your state is one of them, then as you go through your state interview the program will ask for it. As DoninGaA mentioned, to get to your state interview:
For more information see the article below: