Brainwashed. A word to describe someone who has been forced to adopt a certain belief system. Example: John has been brainwashed into believing that the city government is out to get him.
Do we have a word to describe someone that chooses to replace their old belief system with a new one? Example: John chose to brainwash himself into believing that he could learn more about digital marketing if he spends less time watching Netflix.
Maybe ‘brainwashed’ is the word we should use. The word has ‘wash’ in it, and if our minds are filled with beliefs that are taking us nowhere in life, maybe it’s time for a bath.