You have this potential because concentration is a skill that can be learned and improved just like any other part of your game. If you are standing over the ball on the third tee thinking of the bad shot you just played, you are not properly concentrating. If you are on the same tee and mechanically focusing on your head, feet, hand-grip, swing and target at the same time you are not concentrating properly. If you are telling yourself not to hit the ball in the water you are distracted. You need some way of controlling your thoughts in a constructive way.
Concentration is all about developing the ability to tune into one thing.
Practice putting for a few minutes with your eyes shut. You will quickly find a compulsion to be aware of one of three things, the visual image of the ball or the hole or both, the sound of the ball falling into the cup, or the feel of the putter swinging. This awareness is the exact behaviour you are looking to develop with every shot you make. Anything that pulls your attention away from what you see, hear or feel about your swing is a negative distraction. There are a number of ways you can monitor and control your concentration.