have your head screwed on (the right way)
US /hæv jʊər hɛd skruːd ɑn (ðə raɪt weɪ)/
UK /hæv jʊər hɛd skruːd ɑn (ðə raɪt weɪ)/
1.
to be sensible and to have good judgment
:
•
She really has her head screwed on the right way; she always makes smart decisions.
•
You need to have your head screwed on if you want to succeed in this business.