When you want to expand your presence in the AIF program, a good step is to start a YT channel. The suggestion is to add the same video you uploaded to AMZ, then add a subscribe button at the end. The best way to do this is to add an end screen and not do any "extra" editing. For this, use the YT End screen. It will add a subscribe button, and you can also add another video(s) for the user to watch. This will lead them to more watch time. The other videos can be best for the viewer or the one you pick. For example, an accessory to an appliance, if you made two videos.