The most effective method of overcoming disappointments or negative events is to concentrate on the positive aspects of what occurred and not dwell on the negative factors. In simple terms, the longer we focus on something - either positive or negative - the more our brain becomes programmed to think about a particular thought because our neurons link together to form a 'thought highway'. So, the faster you dismiss the negative thoughts and replace them with positive ones, the less emotional impact a negative event has on us. Remember, you control your brain and not the opposite.