a grip on oneself
a grip on (oneself)
Control of one's reactions or emotions. After losing her job, Sarah needed to calm down and get a grip on herself in order to drive home safely. You're not going to be able to think clearly until you get a grip on yourself. Hey, hey, get a grip on yourself! Panicking is not going to make driving home in this snowstorm any easier.
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.
*a grip on oneself
Fig. control of one's emotions. (*Typically: get ~ have ~.) Calm down, man! Get a grip on yourself! I encouraged him to get a grip on himself.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.