You cannot do anything to your returns once you submitted them. You will need to wait to see if your returns were rejected or accepted. If they were rejected you are able to login to your return to fix what you need to fix and fix the errors that caused the rejection and refile the return.
If your returns were accepted, then you will need to file an amended return. You should not try to amend your return until the original return has been fully processed and you have received your refund or your payment has cleared.
