As that is a Swyama Siddha Hanuman Mantra it does not have to become chanted for a fixed variety of Mantra Repetitions for having the ability to utilize it. Distinctive worship and rituals and principles pertaining to path, sitting down mat, and counting rosary are certainly not suggested for chanting https://www.youtube.com/watch?v=ufkmD95y7fE&t=32s