The basic necessities of success are hard work, commitment and drive. However the level of success achieved is determined by level of focus. Focus is a mystery. Some are genetically gifted with it. While others find a way of improving theirs. Focusing on something for extended periods is a discipline in itself.
Smart people focus on their strengths to achieve their goals. Why not concentrate on weakness? If something holds you back you can work on it. Try to eliminate it by tackling it rather than ignoring.
There are various methods to improve focus. Meditation, short breaks, organizing, music, nootropics, etc. They all work but you need to find what works best for you. Once you conquer focus you will be Limitless.