Do not blindly copy the above; it is just an example. Just learn the lessons: Add weight to the second or third set. Stay with one heavy set as long as needed to feel ready to add a second. There is no specific number of workouts with a given number of heavy sets before adding another. Listen to your body. Add no more than one heavy set per training session. Do not be afraid to fall back to a lighter weight if you are having an off day, even if you have already started lifting a heavier one.
