YouTube is a tricky landscape to navigate. Fame is hard to attain, and when it does come around, it’s usually not in the form or because of the reason people expect it to be. If you were to go all the way back to the first video your favorite YouTuber made, you would probably notice a severe drop-off in quality and shift in style: most people don’t have a clear idea of what type of content they’d like to produce when they first start, and it takes a while for them to settle into something they feel comfortable with.
There will occasionally, however, be those who don’t need to find their identity: People who understand what they want to do and how they want to go about it right from the start, no experimentation needed.