How to upload a YouTube Video and set it as 'Unlisted'.

Step 1: Click your profile photo at the top right side of the page and select YouTube Studio.

Step 2: Click "Create" at the top right corner and click "Upload videos".

Step 3: Select your video.

Step 4: Continue the upload process.

Step 5: In the visibility tab, set the video as "Unlisted" and copy the video link at the right side then click save.

This is an example of a link to an Unlisted video: https://www.youtube.com/watch?v=nJqFruAjPVM&feature=youtu.be