You will need to wait for the IRS to either accept or reject the 2020 e-filed tax return.
If the IRS rejects the tax return then you can add in the unemployment and taxes withheld and e-file again.
If the IRS accepts the tax return then you will have to wait for the IRS to process your tax return and issue your refund or process your tax payment. Then you will have to amend the 2020 tax return that was filed to make changes to the filed tax return. Once the amended tax return is filed it will take 4 months or longer for the IRS to process the federal amended tax return.
