As this is a Swyama Siddha Hanuman Mantra it doesn't have for being chanted for a set number of Mantra Repetitions for being able to utilize it. Unique worship and rituals and regulations concerning course, sitting down mat, and counting rosary are not advised for chanting this Hanuman Mantra. The https://www.youtube.com/watch?v=ufkmD95y7fE&t=32s