How do i put a video on a club from my computer?

I wanted 2 put a video from youtobe on here, I put the ULR in. It 说 it found it! Then I clicked 提交 或者 wat ever the button is then it put it in the linx! I clicked on it. All it did was take me 2 youtobe so I just deleted it. I don't know how 2 put it on correctlly! Please help!