out of your mind
US /aʊt əv jʊər maɪnd/
UK /aʊt əv jʊər maɪnd/

1.
crazy or insane
:
•
You must be out of your mind to think that's a good idea.
•
Are you completely out of your mind?
2.
to be very worried or upset about something
:
•
She's been out of her mind with worry since her son went missing.
•
I was out of my mind with grief after I lost my pet.