Plans are important. However, the best plan is nothing without execution.
The trick then is to have enough to start.
There is way more power in action than in planning. Because once you are on the path, you can then make a plan for whether to go left or right. If you are still stuck in the planning stage, you are just making an educated with your eyes shut–just imagining the obstacles.
You will have a way better idea of what to do next after you take the first step.