"Mi vida ha sido un ensayo interminable para un espectáculo sin noche de estreno."

Simplified Meaning:

This saying means that a person feels like they are constantly preparing for something that never happens. Imagine someone practicing for a play or a big event over and over, but the event never actually takes place. They spend all their time getting ready, but they never get to show what they have practiced. In real life, this could feel like always getting ready for an important job or moment, but never getting the chance to actually do it. For example, if someone keeps studying hard for a promotion at work, but never gets the chance to move up, they might feel this way. It can be frustrating because all the effort seems to go nowhere. To apply this idea to your life, it’s important to find ways to use your skills and efforts now, not just keep preparing for something that might never come. Take smaller steps to showcase what you can do and enjoy what you have achieved already, instead of waiting for a perfect moment in the future.