As this is a Swyama Siddha Hanuman Mantra it does not have to be chanted for a hard and fast amount of Mantra Repetitions for with the ability to utilize it. Exclusive worship and rituals and principles regarding way, sitting mat, and counting rosary will not be advisable for chanting https://www.youtube.com/watch?v=ufkmD95y7fE&t=32s