So when I was feeling bad about myself, insecure, I would jack my height up.  But when I was feeling confident and suave, I would knock my height down a notch, just to give the competition a chance.
所以当我感觉特别不好、 没有安全感的时候，我就加长我的身高， 而当我感觉自信娴雅的时候， 我就把我的身高降低到峡谷 以便给竞争对手一个机会。