As stated in the TurboTax support FAQ for amending a tax return, Form 1040X, you should have printed, signed, dated and mailed the amended tax return to the IRS. Included with the mailed tax return your payment for any taxes owed - https://ttlc.intuit.com/community/amending/help/how-do-i-amend-my-turbotax-online-return/01/27577
Payment of taxes owed can also be done at the IRS payment website - https://www.irs.gov/payments
To access your current or prior year tax returns sign onto the TurboTax website with the userID you used to create the account - https://myturbotax.intuit.com/
Scroll down to the bottom of the screen and on the section Your tax returns & documents click on Show. Click on the Year and Click on Download/print return (PDF)
If the Form 1040X, amended tax return is not included in the PDF then you will have to wait until the TurboTax 2019 online edition becomes available in December 2019 before the amended return along with all the tax return worksheets will be included in the PDF.
