After all, being you is what you do best. You have a great deal of experience at it. The surest way to look like a fool is by attempting to impress others with something you're not. Success comes not from pretense.
Success comes from substance.
Perhaps you think the substance of your life is not that impressive. You are overflowing with substance and value and it will show if you'll just let it. Your own experiences, thoughts, interests, knowledge, passions, desires, integrity and sense of humor, among many other things, set you apart and make you truly special. You are wonderful and you are worthy. The power of substance comes from being who you are.