Two similar idioms & polish equivalents 1

It's a very short post about two common English idioms which seem to be quite similar, I mean their meaning is similar and they may confuse us. Let's look at them and study the examples:
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Get your act togetherstop being disorganized and improve your workorstop behaving in a nasty way and improve your behaviour 
Ogarnij się!/Wez sie w gars...