Along with perseverance, you need self-discipline. While perseverance keeps you moving on, good time or not, self-discipline builds inner strength to help you stay in the control. Together they support you to achieve the desired goals by being in control of yourself, your actions and your reactions.
Show up every day at work, wake up on time, go to bed on time, eat on time, eat enough, do the workout, read books, do meditation, stay fit. Build your empire one brick at a time using this magical formula.