No so much looking for mistakes. For me its more about not coming up with the great comebacks to a conversation until hours later and kicking myself for not being able to think on my feet fast enough. That annoys the crap out of me. I will just sit there thinking: "I wish I had said this or why didn't I say that?!" I am getting better though.
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Hey you. Yes, you. Stop being unhappy with yourself, you are perfect.
Stop wishing you looked like someone else or wishing people liked you as much as they like someone else. It's a waste of time.
Stop trying to get attention from those who hurt you. Stop hating your body, your face, your personality, your quirks - love them.
Without those things you wouldn't be you and why would you want to be someone else? Be confident with who you are. Smile.
And if anyone hates on you because you're happy with yourself then you stick your middle finger in the air and say "Screw it."
My happiness will not depend on others anymore. I'm happy because I love who I am.
I love my flaws, I love my imperfections, they make me ME - and me is pretty amazing.