If you used TurboTax Online, your 2023 tax return is saved online.
Sign in to your TurboTax account. Make sure you're using the same TurboTax account (same user ID) as in previous years.
There are two ways to get your prior-year returns:
If the year you're looking for isn't there, it might be in a different account. Go here to find all of your accounts. One of them should have the return you're looking for.
If you used TurboTax Desktop, the only copies of your prior year returns are on your computer. You can get a copy from the IRS, though.
Here's How Get an IRS Transcript.