As that is a Swyama Siddha Hanuman Mantra it does not have being chanted for a fixed number of Mantra Repetitions for having the ability to utilize it. Special worship and rituals and principles relating to path, sitting mat, and counting rosary will not be encouraged for chanting this Hanuman https://www.youtube.com/watch?v=ufkmD95y7fE&t=32s