get your act together
US /ɡɛt jʊər ækt təˈɡɛðər/
UK /ɡɛt jʊər ækt təˈɡɛðər/

1.
se reprendre en main, se ressaisir, s'organiser
to organize yourself and your affairs so that you can achieve something or deal with a situation effectively
:
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You need to get your act together if you want to pass this exam.
Tu dois te reprendre en main si tu veux réussir cet examen.
•
The team needs to get their act together before the big game.
L'équipe doit se ressaisir avant le grand match.