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