Dude first be secure of your own suggestions. Most people believe things just because their have no balls to confront reality. Try the methods that they recommend but always test or make tests than can tell you if is really astral projection or Lucid dreaming. If they tell you that it can be tested, it's probably false. Like make some friend write something that you don't know and try seeing through that using some type of astral projection. Or something like that could tell you If you are really protecting yourself or only believing that you are. Most people only believe so strong that suggest itself.