I continue to experiment with different types of videos, some longer, some shorter, some on different areas of motorcycle-related stuff, to wildly different results. I've noticed that I have to be patient - some videos don't catch on for a while, some do well right off the bat [well being relative to my channel].
The reactions to my Care Bear video are awesome, and it really makes it worthwhile to receive that feedback. I am being creative, which is what I always wanted to do, and mixing that with my joy of riding and letting my personality shine, even if that means bleeping myself out from time to time. I've got a GoPro Max now that I am loving because I can actually make my videos more engaging, longer, and it adds a whole new way to be creative and add humor.
If the channel continues to grow - well, like you said, that's the motivation right there to keep at it!
-John