Where do I enter the information on having sold my primary residence?

This FAQ tells you how to report the sale of your home (principal residence) in TurboTax: https://turbotax.community.intuit.ca/community/tax-topics/help/how-do-i-report-the-sale-of-my-home-principal-residence/00/873724

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

didn't find this helpful at all.