I think there's no harm in following the videos on YouTube.  Even though many people brag, of course there are those who really teach the theory.  But of course you should not accept everything without clarification.  However, of course having a good mentor is a great thing.

I think this is a good thing to minimize the risks that occur.  And I think this indicates he is a good analyst.  This set up is what many beginners skip so they find themselves falling.

I think you should look for channels that you can fully understand.  This helps you to really understand what is being said.  Look for channels that use your national language.  Then you can register a demo account to practice it.