I agree, it is terribly wrong and mortally sinful to have anything to do with occult practices, wicca, ouiji boards, seances, Harry Potter books or any kind of false worship. Demons are not “humanoid creatures”. The fallen angels are spirits. They can take on appearances but they are not corporal. They may be able to fabricate some kind of bodies for themselves, however. And certainly they can possess some people usually through the person’s asking fo it one way or another.

The best and most excelent protection against demons is the practice of the traditional
Catholic Faith as it has been taught in all the years BEFORE Vatican II (a false freemasonic council) and that includes attending the traditional Mass, receiving traditional sacraments, wearing the Brown Scapular of Our Lady and praying the 15 (not 20) decades of the Holy Rosary as Our Lady has repeatedly asked for the salvation of the world. This is what you must do if you would be safe and part of the effort to save souls and bodies in this world.