Occasionally you need to explore your limits. You need to find the end of your capabilities, in order to level up. The Achievement Unlocked workout is a difficulty Level IV workout which makes it unsuitable for those who just begin their fitness journey. You need to add EC here as it will increase the metabolic load your muscles experience which means things will get harder for you and that is exactly what you need right now otherwise you shouldn't be on this workout.
Extra Credit: 1 minute rest between sets.
