I am trying to see would I be able to go back in and do my taxes again even though I was rejected for 2019? I have to take my daughter's info off as I am unable to claim her do to someone else claimin

Since the tax return was rejected you can change the information on the tax return and then mail the return to the IRS.

See this TurboTax support FAQ for completing a 2019 tax return originally started with the online editions - https://ttlc.intuit.com/community/prior-year-return/help/how-do-i-finish-a-prior-year-return-that-i-started-in-turbotax-online/00/26322