Here's the answer: Because your HABITS are a thousand times more powerful than your PLANS. And if your plans are not coming to fruition, it simply means you have certain ingrained habits that actually KEEP you from reaching your goals.
That means just one thing:
If you want to achieve your goals, don't work on your PLANS. Instead, spend time and effort to re-wire your HABITS. If you don't change your habits, then you won't change your future!