bang (someone's) head against a brick wall

Traductions
биться головой об стену
I've been banging my head against a brick wall trying to solve this problem.
Я бьюсь головой об стену, пытаясь решить эту проблему.
Définitions
To engage in a futile or pointless effort, often in trying to persuade someone or achieve a goal that is unlikely to succeed.