Great advice, yet I've been already doing these things over the 4 years of my channel, yet growth is still still. What can I do?
Only real tip i can give is keep going mate you will get more views and subscribers in the long run.
I have changed up the content, none of which has worked out. I created a new series a few months ago, about opening Pokémon cards. These videos do way better than everything else, around 60 views each compared to the regular 10, but despite how amazingly well it does, it doesn't bring any new subscribers.4 years is enough time to gauge what's working and what's not. If the content isn't delivering the results you want then you have to change the content.