The idiom "bang one’s head against the wall" means to try very hard to achieve something, but without success. It is often used to describe a situation where someone is repeatedly trying to solve a problem or achieve a goal, but they are not making any progress.
For example, imagine a student who is struggling to understand a difficult math concept. They keep studying and practicing, but they just can't seem to grasp it. They might say, "I feel like I'm banging my head against the wall trying to understand this!"
The expression can also be used to describe a situation where someone is dealing with a difficult person or situation that seems impossible to change. For instance, if you have a friend who always cancels plans at the last minute, you might say, "I've tried talking to her about it, but it's like banging my head against the wall. She just won't change."
Overall, the idiom "bang one’s head against the wall" is used to express frustration and a sense of futility when trying to achieve something that seems impossible.
• The scientist had been working on a difficult problem for years, but he was starting to feel like he was just banging his head against the wall.
• My friend keeps trying to convince her boss to give her a raise, but she's just banging her head against the wall.
• Despite years of effort, the team of researchers were still unable to find a solution to the problem, and they felt like they were just banging their heads against the wall.
• When it comes to politics, sometimes it feels like we're all just banging our heads against the wall.
• I've been trying to learn how to cook for months, but I feel like I'm banging my head against the wall.
• After months of trying to negotiate a peaceful resolution to the conflict, the diplomats were starting to feel like they were just banging their heads against the wall.