What happens when you try to e-file? Is it being rejected? Or are you getting an error message of some kind?
Are you filing an actual tax return or just trying to file something to get a stimulus check? Please tell us what you are trying to do.
You did not answer any of the questions that were asked.
It seems that you have forgotten how to access your account.
Many people have multiple TT accounts and forget how to access them. Log out of the account you are in now.
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.
To get a copy of your previously filed returns prepared with online TurboTax https://ttlc.intuit.com/questions/1900748-how-do-i-get-a-copy-of-a-return-i-filed-in-turbotax-online