As it is a Swyama Siddha Hanuman Mantra it does not have being chanted for a set number of Mantra Repetitions for with the ability to utilize it. Specific worship and rituals and principles with regards to path, sitting down mat, and counting rosary aren't proposed for chanting this Hanuman https://www.youtube.com/watch?v=ufkmD95y7fE&t=32s