Upload to YouTube or Vimeo
To use either, you'll first need to create an account (both have free plans!). With YouTube, you'll see an "upload" button in the top right corner. Click it and then either drag and drop your file or click to select a file that's saved on your desktop. You will want to have your YouTube video set to 'Unlisted' - This means that only people with the link will be able to view it.
Once your video is uploaded on either platform, you'll see buttons that say "share." Click this and you will see a URL -- copy it.
Embed Video Into Your Account