I’ve made edits to my page but it’s not reflecting on the actual page when I try to view it online. How can I fix this?

Usually, if Shopify’s “password protected” feature is enabled (it’s default enabled on new stores), it prevents the App from showing.
In your online store’s main Shopify dashboard, go into Online Store > Preferences and scroll to the bottom to disable password protection (uncheck the “Enable password page” box).