There are two ways to get back to where you need to see what you already answered. First, and most reliable, is to start at the beginning of the topic area that your answer you need to revisit pertains to. If income related, go to Federal Taxes, and choose Income. Then find the topic area on the list and choose revisit. If related deductions and credits then choose deductions and credits and scroll through the tax break to find your topic area and click revisit.
The other way to get back to a particular place in TurboTax, which works best if it's a topic that relates to a form you received, is to go to the search bar at the top right, where you can get help but also can type topic names or form numbers (e.g. W2) and you'll be given an option to jump to that area.