make up your mind
US /meɪk ʌp jʊər maɪnd/
UK /meɪk ʌp jʊər maɪnd/
1.
to decide which of two or more choices you want
:
•
I can't make up my mind whether to go to the party or stay home.
•
It's time to make up your mind about which college you want to attend.