To understand your insecurities, you must get to the root source and know that it is only a mask you wear.
When we feel insecure, we not only perceive ourselves as incapable of meeting life's challenges but also fraudulent and unworthy of true happiness. We move through life plagued by a sense that others have judged us and found that we are lacking. As a result, we are robbed of our personal power and rendered unable to feel positive about the choices we make. Everyone feels insecure from time to time because each of us is born into the world with unique strengths. If you should find yourself with feelings of insecurity, however, endeavor to understand their source. Perhaps you were repeatedly berated as a child or seldom receive positive reinforcement in the present. A tendency to withdraw from risk or uncomfortable situations can amplify feelings of insecurity. When you have pinpointed the origin of your insecurity, focus on your abilities. The more you utilize your personal power--by taking risks, boldly facing challenges, and acting decisively--the stronger it will grow.
Remember that insecurity is not objective. Rather, it is an emotional interpretation of your value unconsciously based on doubt, shame, and fear. As you overcome those underlying emotions through courageous action and copious self-love, you'll discover that you are capable of achieving more than you ever thought possible.