Flaws? What flaws? I am perfect.
No, seriously. I went through a job-related thing a few years ago now that really damaged my self-esteem, and suddenly I could see all of my flaws. Prior to that, I'd been supremely confident, high self-esteem, and seemingly unaware of my own shortcomings, especially when it came to my own ego. After having to eat a mighty large serving of humble pie, and admitting to myself I could have handled that better, I got on with my life.
In the meantime, I have built what I call my toolbox--a set of skills deliberately meant to counteract my flaws, i.e. better interpersonal communication skills. However, these skills disappear under the influence of alcohol, so I have to be careful
