Everyone should be generally quite sceptical of dating advice and pretty much mostly go by their own instincts.
Why? Dating advice gets communicated, then re-circulated, regardless of its efficacy. It spreads because it makes the spreaders feel good. There’s no strong evolutionary pressure to kill off bad advice. In fact, the opposite is true: bad advice makes for a stronger memes. Because bad advice memes keep their hosts failing at the dating game, enabling them to put more energy into the dating-advice-spreading game.
Put some trust in words of demonstrably wiser and superior people. Otherwise trust and develop your own instincts.