If you did not set up a new separate account for your daughter, then you overwrote your joint return on TurboTax. There is no way to get it back through TurboTax. You can get a copy of it from the IRS but it will cost you $50.
You can get a transcript of the information from the IRS for free.
How to Obtain a Copy of Your Tax Return - TurboTax Tax Tips & Videos (intuit.com)
