"The traditional definition of management is carrying out work through people, but real management is the fulfillment of people through work." – Agha Hasan Abedi
You need to work hard in achieving your goals, yes. But you will achieve your personal achievement by allowing your goals to work on you.
This happens whenever you have to improve anything in order to proceed with your journey towards your dream. And this need to improve arises in every obstacle.
The obstacles are what fulfill you.
In the end, the fact that you succeeded or not at reaching your goal doesn't really matter. What matters is the person that you became in the process.