After you file

I cannot explain or fathom what was done for your 2023 return.  That tax preparer was getting back a rejection for duplicate use of your SSN---which means something was filed using your SSN.

You could use the account recovery tool to search for the return you started last year:

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

See if you can find the original return and then use whatever is on it to check the IRS refund site.

If nothing shows up on the refund site:

What you do need to understand at this point is that e-filing is permanently closed for 2023 returns.   If you started a 2023 return using TurboTax and did not finish it or file it, you can find it and finish it by using the desktop software on a full PC or Mac, and then you can mail it in.

Or---you can just start all over using desktop.

You cannot change the tax year.   The current online program is for 2024 only.   Only a 2024 return can be prepared online and only a 2024 return can be e-filed.

Online preparation and e-filing for 2021, 2022, and  2023 is permanently closed.

Note:  The desktop software you need to prepare the prior year return must be installed/downloaded to a full PC or Mac.  It cannot be used on a mobile device.

To file a return for a prior tax year

 If you need to prepare a return for 2021, 2022, or 2023  you can purchase and download desktop software to do it, then print, sign,  and mail the return(s)

https://turbotax.intuit.com/personal-taxes/past-years-products/

You may also want to explore purchasing the software from various retailers such as Amazon, Costco, Best Buy, Walmart, Sam’s, etc.

Remember to prepare your state return as well—if you live in a state that has a state income tax.

https://ttlc.intuit.com/turbotax-support/en-us/help-article/state-taxes/contact-state-department-rev...

When you mail a tax return, you need to attach any documents showing tax withheld, such as your W-2’s or any 1099’s.  Use a mailing service that will track it, such as certified mail so you will know the IRS/state received the return.

Federal and state returns must be in separate envelopes and they are mailed to different addresses.  Read the mailing instructions that print with your tax return carefully so you mail them to the right addresses.