How do I insert videos?

Hello Everyone,

I’m brand new to this WordPress stuff

I’m trying to put a video as one of my post.

I thought you copy the embeded code from youtube and just paste it in the content section.

That didn’t work, the actually code showed up on the post.

Then I clicked on the little add video icon and selected “from url”, so I copied the url from youtube and that didn’t work as you can see

My Site

How do I put a video as one of my post?

thanks in advance