Thank you for the question.
You will need to wait until you receive your Notice of Assessment before you can refile your return.
Per the CRA; You can request a change to your tax return by amending specific line(s) of your return. You cannot, however, refile a tax return once you have already submitted it.
Here is a Turbotax guide on how to amend your tax return.
If you have any questions, please contact us.