Learning something is not as easy as just watch a video and know! The Internet nowadays creates a great chance for people who willing to learn something. There are plenty of sources that can teach you exactly what you wanna learn!
I believe watching videos of study materials must be more effective than learning from books. I mean you will not get tired just by watching videos rather than reading some books. I'm not sure about most other people but I am just talking what I am experiencing learning from videos compared to learning from books. I agree learning something is not easier but videos are definitely helping to learn some new things in easier manner.
Back to the topic, risk management must be an essential part of successful trading and at the same time it will not be easier to get practice to it in our daily trading unless otherwise we are consciously implementing it in our decisions. Always expecting hitting stop loss and making my order size according to affordable stop-loss is one of the practice I do in my trading as part of risk management.