I agree. I've had five and ten year plans. Some of my five year plans even panned out. The vast majority of my one and five year plans fail as reality is too unpredictable.
* Be careful to not fall into a local maximum. As years progress in a long plan you might find better opportunities by adapting. Think of the opportunity cost of sticking to your plan
* As you execute the plan, you'll gain more knowledge and experience. This very frequently includes information that would have been useful in forming the plan. Try to anticipate what will give you this information and gain it as early in the plan as possible.
* Change happens. You change. The world changes. Reevaluate your plans frequently.
* Be careful of sunk cost fallacies. Even if you worked really hard to progress, sometimes the best corse of action is to walk away.
* Be careful to not fall into a local maximum. As years progress in a long plan you might find better opportunities by adapting. Think of the opportunity cost of sticking to your plan
* As you execute the plan, you'll gain more knowledge and experience. This very frequently includes information that would have been useful in forming the plan. Try to anticipate what will give you this information and gain it as early in the plan as possible.
* Change happens. You change. The world changes. Reevaluate your plans frequently.
* Be careful of sunk cost fallacies. Even if you worked really hard to progress, sometimes the best corse of action is to walk away.