EDIT: I looked at the "receive" tab, but didn't see anything labeled "address".
I understand that you don't even know HOW the address should look like, right? It's a set of numbers and letters (26-35 characters) that start with the number 1, 3, or bc1. For example, bc1qar0srrr7xfkvy5l643lydnw9re59gtzzwf5mdq - this is the address. But perhaps I just misunderstood you and you figured it out.