As it is a Swyama Siddha Hanuman Mantra it does not have to become chanted for a set number of Mantra Repetitions for with the ability to use it. Exclusive worship and rituals and guidelines pertaining to way, sitting down mat, and counting rosary are not recommended for chanting this https://www.youtube.com/watch?v=ufkmD95y7fE&t=32s