As this can be a Swyama Siddha Hanuman Mantra it does not have being chanted for a fixed amount of Mantra Repetitions for with the ability to use it. Exclusive worship and rituals and principles about direction, sitting down mat, and counting rosary are not proposed for chanting this Hanuman https://www.youtube.com/watch?v=ufkmD95y7fE&t=32s