As that is a Swyama Siddha Hanuman Mantra it does not have to be chanted for a fixed quantity of Mantra Repetitions for with the ability to utilize it. Exclusive worship and rituals and policies pertaining to path, sitting down mat, and counting rosary aren't encouraged for chanting this Hanuman https://www.youtube.com/watch?v=ufkmD95y7fE&t=32s