Once someone asked me three words that best describe me and I said 'Loud, Louder, and Loudest'!
The only mistake guys can make is to try too hard with their appearance. There's something very unmanly about it.
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.