The development of personality occurs in phases throughout life. For someone who is young, the main task is to develop use of their preferred mental functions. As one matures, however, and approaches midlife, there is often a need to develop greater comfort with using your non-preferences. This can help you increase your performance at work, and increase your ability to deal with different people and circumstances.
As with all types, an ENFP can achieve personal growth by developing all functions that are not fully developed, through actions such as being selective about starting projects, and producing plans to help identify which ones can be delivered. ENFPs sometimes need to learn to stop and think, and recognise that others will accept the ENFP and his/her ideas more if given sufficient time to make their own contribution. ENFPs also need to be more tolerant of existing routines that work well, and resist from changing them.
A common theme of development for all types after midlife is individuation. This involves learning to value and develop various "opposites", not just the opposite typological preferences. Through reconciling opposites, your personality becomes more individual and unique, and your personality type may change. You might also reach the stage where your closest personality type is no longer a description of you, but it is merely a part of your personal history.
Next: ENFP and Stress