As it is a Swyama Siddha Hanuman Mantra it doesn't have to be chanted for a fixed variety of Mantra Repetitions for with the ability to utilize it. Exclusive worship and rituals and regulations relating to route, sitting down mat, and counting rosary are not advisable for chanting this Hanuman https://www.youtube.com/watch?v=ufkmD95y7fE&t=32s