Feed your mind continually with positive thoughts. Remember to take time out to relax and unwind. Before the mind can be relaxed, the muscles must be. A relaxed body makes for a healthy mind, which can absorb information more easily. I definitely don't get enough of that.
Winners visualize success and positive outcomes to their endeavours and they know when to relax.
Usually there is not such a great difference between the world's top sportsmen, in terms of pure talent. Think of the sportsmen who got to the top through sheer hard work, far more than their natural talent. I often think of a small man, like South African golfer Gary Player. Not French fries. It is probably the single most important step on your stairway to success.