Time must pass. A character doesn't make a new plan in a second unless they're that kind of person, rash and heedless. The time could be a few hours, a day, a week, a year. Setting up the time is important. You can say something like two days later... Then place your character where he or she might be.
A new plan must be made but first the character must react to what has happened. What's the emotion they're feeling, sadness, anger, regret. Walk them through the emotion and then set them to find a solution.
Once the solution or the new plan on the road to obtaining the goal is made, the time has come for a new scene.