"Have one act together" is a phrase that implies being organized, prepared, and focused on a goal. Synonyms for this phrase include "on top of things," "in control," "on the ball," "coordinated," "systematic," and "orderly." Each of these synonyms describes a state of being where a person has their thoughts and actions in sync and are proficient in managing tasks and responsibilities. "On top of things" implies being aware and informed; "in control" connotes mastery and authority; "on the ball" highlights being alert and attentive. "Coordinated," "systematic," and "orderly" all suggest a sense of structure and purpose to actions and decisions. Using these synonyms can help enhance communication and make one's writing or speech more colorful and impactful.