After creating your video, one of the very first things you should do to promote it is to write a blog post about your video. From there you can promote the blog post to all your social media networks, ask your friends to share it, and even use pay per click and other means to promote the post, and in turn to promote the video. There are many ways to approach promoting your video via a blog post.
Finally, don't forget the CTA. If you embed the video into one of the blog posts about the video, you can make more CTA's than just "watch" the video. You can ask people to comment, subscribe, and/or buy something based on your video.