amend 2021 tax return

I forgot to include some stock transaction 1099 forms for my 2021 tax return.

so I will amend my 2021 tax return.

 

I am still working on my 2022 tax return and plan to file by Oct 16.

 

My 2022 return has imported 2021 data(such as capital gain/loss carryover).

 

Should I amend my 2021 return asap and import the amended return data into my 2022 tax return?

or should I wait until IRS accepts my 2022 return?  If I do so, will I need to amend my 2022 return as well?

 

Thanks!