Do NOT send in an amended return until your original tax return has been fully processed.  If you try to amend and send in a 1040X before the original return has been processed, it will create confusion and delays.  

*** hot off the presses***  the IRS will start allowing amended 2019 returns to be efiled  later this month ... wait for the TT program to be ready for this change so you can avoid the 6 month processing time the paper returns are currently taking. 

See this TurboTax support FAQ for amending a 2019 tax return - https://ttlc.intuit.com/community/tax-topics/help/how-do-i-amend-a-2019-return-in-turbotax/01/123845...

The 2019 amendment instructions are not functional yet ... in early December when the online system opens the amendment option will be presented. 

https://ttlc.intuit.com/questions/1894381-how-to-amend-change-or-correct-a-return-you-already-filed

If you used the TurboTax online editions for the 2019 tax return you will need to download the tax data file from the online account to your computer.  You will need to install the 2019 TurboTax software on your computer to open the 2019 tax data file.

If you purchased one of the 2019 TurboTax online editions you can contact TurboTax support to have them push a 2019 desktop installation file to your download account at no charge - https://support.turbotax.intuit.com/contact/

---

@Lackers12 wrote:

I didnt get my first stimulus ck or the second one so I have to fill 1040x

---

Assuming that you are not a dependent and are Not eligible to be claimed as a dependent plus your 2020 Adjusted Gross income is within the range to be eligible for the stimulus payments - 

Did you already file a 2020 tax return for the Recovery Rebate Credit for the payments you did NOT receive?