be/sound like a broken record
US /biː/saʊnd laɪk ə ˈbroʊkən ˈrɛkərd/
UK /biː/saʊnd laɪk ə ˈbroʊkən ˈrɛkərd/

1.
to repeat the same thing over and over again, often to the annoyance of others
:
•
I know I sound like a broken record, but we really need to finish this project by Friday.
•
He keeps being like a broken record about his promotion.