What is the "dominant response" that comes about when you try to psych yourself up before doing something you don't want to? Trying too hard to psych yourself up can have the opposite effect?!
Psyching themselves up this way only 
makes them want to do it less,
إنَّ تحميس أنفسهم بهذا الشكل
لن يؤدّي إلّا إلى تخفيف رغبتهم بفعل ذلك
Sich psychisch zu pushen, führt nur dazu,
dass sie es noch weniger wollen.
Al levantar el ánimo, contradictoriamente,
Al levantar el ánimo, contradictoriamente,
En se motivant ainsi,
le refus d’y aller s’intensifie,
Persuadersi così diminuisce ancor più la voglia,
Esse foco mental é a única coisa que dá mais ânimo,