Yes you can promote your YouTube channel for using all of your social media accounts and forums because everybody is active on social media every time around the world so it will gain more traffic to your website or even a YouTube channel I have also YouTube channel and I promote my Channel on Facebook pages of YouTube subscribers and watch time etcYouTube channel can be improved my making sure to upload authentic and reliable shows to watch.it can also be improved by trying to share links with family and friends on other social media like wattsap, Facebook and Twitter