Undo an answer about health insurance through the marketplace

While answering initial questions, I said, "yes" that I had health insurance through the exchange or marketplace. Because of this, it's asking if I got a 1095-A. However,  since I have Medicaid I will not get a 1095-A. Apparently, I should have said "no" to insurance through the exchange. I've tried searching for how to change my answer but can't seem to navigate to that location again. I only see the option to say whether I've received a 1095-A or not. I don't want to start the whole process over again. How can I change this answer to no?