If I don't feel confident about my body I'm not going to sit at home and feel sorry for myself and not do something about it. It's all about taking action and not being lazy. So you do the work whether it's fitness or whatever. It's about getting up motivating yourself and just doing it.
I think of novels in architectural terms. You have to enter at the gate and this gate must be constructed in such a way that the reader has immediate confidence in the strength of the building.