Spin your wheels.
[Idiom] SPIN YOUR WHEELS. - Maximize Efficiency: Avoid Unnecessary Efforts
Waste effort.
When someone says you are "spinning your wheels," it means you are exerting effort but not making any progress towards your goal. Picture a car stuck in mud, its wheels spinning, but it doesn't move forward. This idiom is often used to describe fruitless activities where no amount of hard work seems to pay off.
Example Sentences
I'm just spinning my wheels trying to figure this out.
I am making no progress trying to figure this out.
She felt like she was spinning her wheels at her job.
She felt stuck and unproductive at her job.
After hours of studying without progress, I knew I was just spinning my wheels.
After hours of studying without success, I realized I was making no progress.