Making a rod for your own back?

"Making a rod for your own back" is an idiomatic expression that refers to creating problems or difficulties for oneself through one's own actions or decisions. It often implies that an individual is setting themselves up for future troubles due to a lack of foresight or poor judgment. The phrase suggests a sense of self-inflicted pain or hardship as a consequence of one's choices. Essentially, it serves as a caution against actions that lead to self-created challenges.