You didn’t know that there is a difference between sacramentals and the seven sacraments?
Sacramentals are sacred signs that bear a certain resemblance to the sacraments. Sacramentals include such things as holy oils, bells, incense, candles, holy water, and medals and scapulars, including the brown scapular.
Cause we see Paul, Peter and others using those so much in the NT.