Knowing, acknowledging, and accepting your strengths and your weaknesses strengthens self-confidence. When you focus on what you perceive are glaring flaws and proceed to beat yourself up for possessing them, thats where your attention lies. Your emotions and actions follow your focus. Rather than ruminating about your human weaknesses and trying to resist them, accept them as part of who you are. Notice, accept, and move on. Shifting your attention to what you do right rather than wrong enhances self-confidence.