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