Growth is achieved through pushing to 101%.
Doing a little more than you think you can do, so that your muscles and your mind are fatigued. But you need to pair pushing your limits, with resting super hard after that. Because that's the only way for you to recover.
Recovering is the only way to increase your limits, and build more muscle, more endurance, and more achievements.
You must do this regularly in order to reach your higher potential.