Ok, this is my point of view,
the different thing about your channel is the way you film and edit your videos, I love it! You are an amazing cardist and you can edit your videos, that's what people want...
If you did not have those skills to edit, you will have less subscribers(including the fact that you're a great crdist)... There are also on youtube some bad cardist but that can edit videos pretty well unfortunatly, sometimes they have more subscribers than the really good ones..
You're an amazing cardist,but unfortunatly people of our generation prefer the appearance before the skills..
So to be succesfull I think it's convincing the world that you're exceptional :/
but the good think with you is that you're an amazing cardist with a lot of potential and a great editing so you have everything to be famous!
(my message is maybe a bit confusing sorry, I don't have enough english vocabulary..)