As it is a Swyama Siddha Hanuman Mantra it does not have to get chanted for a set amount of Mantra Repetitions for being able to utilize it. Special worship and rituals and policies pertaining to path, sitting down mat, and counting rosary aren't encouraged for chanting this Hanuman Mantra. https://www.youtube.com/watch?v=ufkmD95y7fE&t=32s