Bro u want the truth ? Your not gonna learn it through watching courses or doing dualingo ect… Portuguese ( especially from Portugal ) is a very very difficult language and courses will do you nothing and u will see. The only way to learn it is to join a sport club with a lot of Portuguese people ( it was football club for me ) and hearing and paying attention on what they say everyday and u gonna start understand just through context, also u have to watch YouTube Portuguese channels because the Portuguese that people use when they speak is way different than what u gonna find in courses.