As this is the Swyama Siddha Hanuman Mantra it does not have to get chanted for a fixed range of Mantra Repetitions for being able to utilize it. Particular worship and rituals and principles concerning way, sitting mat, and counting rosary are not encouraged for chanting this Hanuman Mantra. The https://www.youtube.com/watch?v=ufkmD95y7fE&t=32s