She decided to 'take the bull by the horns' and try to solve the problem without any further delay.
As a politician, he was 'a bull in a china shop' and often had to apologize for his rough speech.
Her comments about our problems 'hit the bull's-eye'. [=her comments were exactly correct]
(..) cause I couldn't write as well as you. Robb, I write to you today with heavy heart. Our good King Robert is dead. - Killed from wounds he took in a bull... - You don't have to read it. - I remember. - Father has been charged with treason. He conspired with Robert's brothers (..)2017 TvShow: Game of Thrones Title: Beyond the Wall Season: 7 Episode 6
(..) No one to stop me. So I started shooting. And every shot I had to go up there and get my one arrow and walk back and shoot it again. I wasn't very good. Finally, I've hit the bull's eye. Could've been the th shot. Or the th. I don't remember. But I hit the bull's eye. And I heard this. I looked up. (..)2017 TvShow: Game of Thrones Title: Beyond the Wall Season: 7 Episode 6