You will likely need to amend your return
Filing your taxes is not like tweeting --it does NOT happen in real time and there are no do-overs or take-backs.
The only way you can hope to straighten things out is to WAIT until you actually receive your original refund.
You can make those corrections if your return is rejected.
Perhaps some terminology/definitions would be in order:
AMEND:- your return is what you do AFTER your return has been filed and accepted
by the IRS and/or state. (No additional charge)
CHANGE:- your return is what you do BEFORE your return has been filed --simply go
back to the respective information and change it as needed.
CORRECT:- your return is what you do AFTER you attempted to file your return and
it is rejected by either IRS, or state --again, simply go back to the
respective information and change it as needed.
Above all DO NOT DO ANYTHING until you find out if your return is rejected or accepted.