be beside yourself

US /bi bɪˈsaɪd jərˈsɛlf/
UK /bi bɪˈsaɪd jərˈsɛlf/
"be beside yourself" picture
1.

어쩔 줄 모르다, 감정에 휩싸이다

to be overwhelmed with a strong emotion, such as anger, grief, or excitement, to the point of losing control

:
She was beside herself with grief after losing her pet.
그녀는 애완동물을 잃고 슬픔에 잠겨 있었다.
He was beside himself with joy when he heard the good news.
그는 좋은 소식을 듣고 기쁨에 겨워 어쩔 줄 몰랐다.