can't add a url that shows up on blog

Erase. I don’t know what I am doing. I found an editor but am completely confused. Can you send an example? I really appreciate your time. As you can see, I’m a ditz.

By the Editor I am referring to CMS area where you would put your post content before clicking Publish or Update. On the top right there are two tabs – Visual and Text. Click the Text tab and paste that code in, your video should display in that post after Updating/Publishing.