In my pursuit to have more things done, save time and be more efficient, I've made some awful mistakes when it comes to goal setting, effective time management and even planning my actions.
But i learned from my mistakes...
One of the most important lessons I’ve learned in my life is that
90% of success comes from deciding to take ACTION on my goals.
To conquer this Syndrome of "Learning, but not doing " you have to decide WHAT you want and WHY you want it .
The reason you are giving up easily when you want to achieve something is that the goal or the assignment appears TOO BIG in your mind.
Whenever you are feeling stuck or procrastinating, try to find ways to chunk down your goal into steps. Stop thinking of ALL the things you have to do, and how PAINFUL they are. Instead, chunk them down into 3 simple steps. Focus on these 3 steps and you’ll soon feel more relaxed and more balanced.

I hope this helps you...