You can either just not enter the amount, and save the receipt for next year, or you can change the 12-month period that you are claiming so that it doesn't include the whole year.
If you have TurboTax Live Assist & Review, here is how to talk to a Tax Expert: https://turbotax.community.intuit.ca/community/navigating-turbotax/help/i-m-using-turbotax-live-assist-review-how-do-i-talk-to-a-tax-expert/00/873764