IThis is new to me but here's the thing, MAXIMIZE your SEO. Use keyword app on google and think of tags relating to your video and then check each tag to see how many monthly searches it gets, if it's in the millions, use it, if it's lower than 1 million, don't use it. Keep doing this until it won't let you save, this means you've used the maximum amount of tags it will allow. Now that that's done, think about your channel and it's theme, and think of ways you can incorporate that into what's going on in the world. When you hear about the next big trend (be watching for them) think of a way to do a video on it so you can ride that wave of popularity. And then just like the dude above said, mingle, make friends, comment on videos, and try to set up collabs. You won't win this game being shy, you gotta get out there and become a force in the community