True beauty is where you do not think about how or why, you just know.
I need to build my confidence, and for someone who has low confidence levels to suddenly try and be more confident is confusing for surrounding people and so their reactions are wrong - and seeing as confidence is partially about how people treat and re-act to you, this of course is bad.
Confidence breeds confidence, so initially it would have to be an act in order to cross the gap between low to high confidence, so people start thinking I am more confident and treating me accordingly. It is also a lot more difficult to create the illusion of strength and confidence around people you know as they can see through you more than others.