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

1.
得意忘形, 冲昏头脑
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.
计划派对时很容易得意忘形。
•
Don't get carried away with your spending; remember your budget.
不要得意忘形地花钱;记住你的预算。