get carried away
US /ɡɛt ˈkærid əˈweɪ/
UK /ɡɛt ˈkærid əˈweɪ/

1.
得意忘形, 沖昏頭腦
to become overly excited or enthusiastic about something, often to the point of losing control or judgment
:
•
It's easy to get carried away when you're planning a party.
計劃派對時很容易得意忘形。
•
Don't get carried away with your spending; remember your budget.
不要得意忘形地花錢;記住你的預算。