pull in the reins

To begin doing something more carefully or cautiously; to regain or tighten control over someone or something. This thesis you're planning is becoming wildly unfocused—I think you should pull in the reins a bit! I wish those parents would pull in the reins on their kids—the little devils are tearing the place apart!

Common Names:

Name	Pronounced	Usage
Trecia	-	English (Rare)
LÁSzlÓ	LAHS-lo	Hungarian
Snow	[snəu]
Nanuli	-	Georgian
Carlitos	-	Spanish, Portuguese
Ascham	['æskəm]