go to someone's head
US /ɡoʊ tə ˈsʌm.wʌnz hɛd/
UK /ɡoʊ tə ˈsʌm.wʌnz hɛd/

1.
冲昏头脑, 得意忘形
if success or praise goes to someone's head, it makes them feel more important than they really are
:
•
Don't let that small victory go to your head.
别让那点小胜利冲昏了你的头脑。
•
After winning the award, his ego really started to go to his head.
赢得奖项后,他的自负真的开始冲昏了头脑。