Once your returns are accepted, you cannot change your original return.  You would have to amend both returns.  Amended returns must be mailed.

It is suggested that you wait to amend until your returns are fully processed.  The IRS & State do catch so mistakes & will notify you if they find them.

How do I amend a 2019 return in TurboTax?

https://ttlc.intuit.com/community/tax-topics/help/how-do-i-amend-a-2019-return-in-turbotax/00/123845...