be beside yourself

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

vô cùng xúc động, mất kiểm soát, quá vui mừng, quá đau buồn

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.
Cô ấy vô cùng đau buồn sau khi mất thú cưng.
He was beside himself with joy when he heard the good news.
Anh ấy vô cùng vui sướng khi nghe tin tốt.