You can't cancel the submission but, since it hasn't been accepted yet, wait to see if it's accepted or rejected.
If it's rejected, you'll have the opportunity to make corrections.
If it's accepted, you'll need to amend your return.
Please see the
TurboTax FAQ "I need to amend my state return" below for guidance, should it be needed.
https://ttlc.intuit.com/replies/4653469
And, in case you need to amend your federal return, see the
TurboTax FAQ "How to amend (change or correct) a return you already
filed," below, for instruction on how to amend your previously-filed tax
return.
https://ttlc.intuit.com/replies/3288565