Below are some prompts and exercises to help you figure out a new plan when your shot missed the target.
Review
What were you actually trying to achieve with your original plan? Strip away the method and get to the outcome you wanted. Remember what fueled your engine before other stuff got in the way.
What parts of your original plan are still worth keeping? What worked, even if the overall attempt didn't?
What would you do differently if you had to start again today? What would you change based on everything you know now?
What new information do you have that you didn't have when you started? How does it change what you think your best next move might be?
Are you trying to find a better plan, or are you trying to make the old plan work? What's the difference?
Practice
Plan B, C, D: give yourself 20 minutes to come up with four completely different ways to achieve the same outcome. You aren't allowed to improve the original plan. Each one has to be a genuinely different route.
Start at the End: draw a horizontal line and fill it with plot points to illustrate the backwards version of your story, beginning with the failed shot on the left and ending with the very first thing you did to get the ball rolling on the right.
Circle the points where you would do something differently and make notes about what you would do.
Create a Mini Victory: strip your goal down to its smallest possible version. What would the tiniest successful version look like? What could you test right now without committing to the whole thing? For example, if you want to open a cafe, maybe that looks like hosting people you know for a pop-up coffee shop to test recipes and drinks.