I can't find the records from filing my taxes last year, even though i remember doing them. The irs records say they were never filed so how do i fix my return?

What does it say in the account you used for the 2024 return?

 Does it show that the return was accepted?   Or does it say something else---like "rejected," "printed," or "ready to mail?”

If you discover or realize that your e-file was rejected, or just never filed, you will need to print it, sign and date it in ink, and file it by mail now, since e-filing is closed for returns for tax year 2024.

Do you know how to access the account?

  You have to access your own account and/or  print it for yourself using exactly the same account and user ID that you used when you prepared the return.

 https://myturbotax.intuit.com/

Start a 2025 return online and enter some personal information  so that the menu on the left opens up and lets you access your past year returns.

https://ttlc.intuit.com/community/prior-year-return/help/how-do-i-access-my-prior-year-return/01/27010

https://ttlc.intuit.com/turbotax-support/en-us/help-article/import-export-data-files/save-2021-turbotax-online-return-pdf/L8dHfRkpT_US_en_US?uid=m5y4ch1y

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-turbotax/L9aVfKS1Z_US_en_US?uid=ll5g6zcx

Account Recovery

https://ttlc.intuit.com/turbotax-support/en-us/help-article/account-management/many-intuit-accounts-turbotax/L9aVfKS1Z_US_en_US?uid=ll5g6zcx

Or did you use the desktop version of TurboTax?  If so, the files are on your own hard drive or any backup device you used like a flash drive.

https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-return/find-last-year-tax-data-file-tax-file-computer/L0XJvPaJr_US_en_US

https://ttlc.intuit.com/turbotax-support/en-us/help-article/data-systems/find-tax-data-file-mac/L4VNGm33S_US_en_US?uid=m6guhab0

If you used the online version, you can log into your return and go to previous year tax returns, then choose print pdf.  

If you used the desktop version you would open TurboTax 2024, then open the correct return and go to the print center to print your return.

If you cannot find them anywhere, you can use TurboTax 2024 download version to file your 2024 return. 

The 2024 return will need to be mailed as the e-filing period is closed for past tax years. 

You can double check  your email to see if your return was sent or rejected.  You can do the same for 2025.