No worries, Figjam -- we all go thru this learning process.
You should never need to type in an address. As Ygmir mentioned, you should be able to copy an address and paste it in where you need it.
Do you know what "highlighting" something on the screen means? It means you click on something -- or even drag the mouse over it with the left button held down -- and that area turns blue. (Could be an other color -- you'll see it.)
Once an address (or a section of text) is highlighted (or "selected"), you can copy it by either clicking on the copy icon at the top, or by typing Ctrl C. Now that address is sitting on the computer's "clip board", ready for you to "paste" it in somewhere else with either the clip board icon, or Ctrl V.
Let's make sure you have that down.
Edit: Oh... And when you highlight something, you need to make sure you get just what you need in blue, no more and no less. That can take a few tries. Just click anywhere on the screen to cancel the highlighting and try again.