Hi! :)
I came across something related to Steemit and youtube videos.

I am not 100% sure about this, but as far as i have understood, there is something called BTube on Youtube. https://www.youtube.com/channel/UC45R8lRxq_JcU9IuMMVnpnA

According to some people on the chat here, if people like your videos there, and those videos are connected to this site, then it will count as a up vote here too.

Since u have a lot of videos there, i thought it might be a good idea to look in to that, and see if you can connect them all to each other or something.
(i am not sure how it works, but it sound like something it might be worth taking a closer look at for you.) ;)