Please see this TurboTax FAQ for the information you need to file your taxes on the TurboTax app: https://ttlc.intuit.com/community/using-turbotax/help/how-do-i-use-the-mobile-app/00/26828.
What do you mean new taxes? Did you get a new W2 or 1099 after you filed? Or are you just starting a 2019 tax return?