"No te engañes pensando que algo está funcionando cuando no lo está o te vas a obsesionar con una mala solución."

Simplified Meaning:

Imagine you are trying to fix a car that won't start. Instead of checking all possible issues, you focus only on the battery and keep trying to charge it even though it's not the problem. By being stuck on this wrong idea, you're wasting time and energy, and the car still won't start. This quote is telling you to be honest about whether what you're doing is actually helping you solve your problem. If you keep convincing yourself a bad plan is good, you won't find the real solution. In life, if something you're trying isn't working, it's important to recognize that and try a different approach. For example, if you're studying hard for a test using one method and your scores don’t improve, it might be time to try a new study technique. Being open to change when necessary can save you from frustration and helps find what truly works.