If heaven had a height, you would be that tall

So someone (who's opinion of me is very important, which is not normal, because I could usually care less wether you liked me or not) told me today that I lack confidence. Now, i'm not sure what to make of that. Most people know me as having too much confidence and basically being full of myself.
Now, I really need to set forth a good first impresion here, so I have a question, how does one fake confidence??
I know that am I defiantely not confident. True, it's portrayed that most of the time I have myself together and I know what I what. But i'll let you in on a little secret. I absolutely, postively, 100%, am not sure of anything in my life other than my love for my baby. Ok, so maybe it's only 98% of total and utter chaos that I call my life. I know when I need to get something done, I do it. But other than that, which actually happens quite often, I let life go it's course w/o really influencing it too much.
How can I portray this 'grab life by the horns and guide myself to where I want to be' to people looking and expecting something from me?


Peace Out