Planning, or at least the belief that things will workout according to plan, is mostly illusory. Preparation, on the other hand, is different from planning.
Planning is about predicting the future. Preparation is about being ready for whatever the future may hold, regardless if things workout according to plan.
Planning is about expecting certain outcomes. Preparation is about being as ready as one can be for any outcome.
We can do both, or we can do the latter, but planning by itself is sure to lead to disappointment.
Some of the best things in life happen unexpectedly and in spite of our failed plans (sometimes because of them).
Rather than planning — mapping out the future, perhaps it’s better to embrace the moment. If we always have the attitude that we’ll do what’s important in the present moment we’ll always be prepared for anything.