bang (someone's) head against (a) brick wall

Translations
биться головой об стену
Trying to convince him to change his mind is like banging your head against a brick wall.
Пытаться убедить его изменить своё мнение - всё равно что биться головой об стену.
Definitions
To repeatedly try to achieve something that is very difficult or impossible, often becoming frustrated because no progress is being made.
Words
bang

verb
биться
someone

pronoun
кого-либо
is

functional word
есть
head

noun
голова
against

preposition
о
a

article or possessive pronoun
одну
brick

adjective
кирпичная
wall

noun
стена