One video on investing does not make you an investor. It makes you dangerous.

A single explanation gives you the vocabulary without the judgement, and vocabulary is what confidence runs on. That is the risky stage: you now have enough language to make decisions and not enough experience to know what the language leaves out. Complete ignorance makes people cautious, which protects them. Partial knowledge removes the caution and keeps the ignorance.

Having just learned about something, notice the urge to act on it and let a little time pass. Go find what the video left out, especially the parts about what can go wrong. Talk to someone who has done it for years before you stake anything.