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

1.
membuat sombong, membesar kepala
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.
Jangan biarkan kemenangan kecil itu membuatmu sombong.
•
After winning the award, his ego really started to go to his head.
Setelah memenangkan penghargaan, egonya benar-benar mulai membesar.