Nope, most of the stuff I want to do on my 2017 RX do NOT have videos on YouTube. Good luck changing the spark plugs yourself including with YouTube. The back 3 will be impossible
It's impossible to learn to work on modern cars without help, and the idea that things are similar enough from the old cars that it carries over to modern cars is simply not true for a whole lot of vehicles. You really do need videos for each and every vehicle.
Watch even experienced mechanics works on new cars. They tend to bumble around for awhile.