First! Also good video :3 Being yourself and having fun is the most important part, but sometimes you can improve upon skills that might make you attract more people and keeps their attention!
I don't think that's entirely true. Some definitely completely fake who they are yes, but a big portion of youtubers are being themselves, they're just being themselves in a more naturally exaggerated/entertaining way because most people won't enjoy a youtuber whos just monotone and seems uninterested/not passionate.