There are a variety of synonyms for the phrase "turn around and do something." Some alternatives include "make a U-turn and take action," "shift direction and follow through," "pivot and execute," "reverse course and act," "change tack and proceed," "switch gears and implement," or "redirect and tackle the issue." Each of these phrases conveys the idea of changing one's approach and committing to a course of action. Choosing the right synonym will depend on the context and tone of the situation, but whichever phrase is chosen, the underlying message is clear: it's time to make a change and take action.