As it is a Swyama Siddha Hanuman Mantra it doesn't have to generally be chanted for a set range of Mantra Repetitions for having the ability to utilize it. Distinctive worship and rituals and guidelines with regards to way, sitting mat, and counting rosary are usually not advisable for chanting https://www.youtube.com/watch?v=ufkmD95y7fE&t=32s