When someone needs to learn how to do something they have never done before, such as how to change the oil in a car, how to play poker, or the best way to fix certain household issues, they might turn to an online video platform. Nowadays, you can find pretty much any kind of tutorial. However, Leo, you can't tell for sure if the guidance provided is an encompassing solution, whether it fits exactly your case/model, etc. You may now be relying on the guidance of someone you don't know all that well to do something you feel insecure about doing. Just admit how you feel and spread the word that you're looking for reliable guidance. You're likely to find someone who can help you more effectively than a random online resource.