How bad do you really want the great things that you know can happen in your life? How clearly can you see the vision in your head of where you want to be, and how clearly can you see the vision of how you are going to get there?
My friend, potential is great, talent is great, and desire is great. If you don't have enough determination to work daily on getting closer and closer to your dreams, you will never reach your dreams.
If you aren't willing to put in the practice, and sit out the nights of drinking with your friends, if you aren't willing to forego a meal every once in a while, a few hours of sleep every once in a while, to get where you need to be a success, then chances are you don't desire it enough, you aren't determined enough. How bad do you want success today?